chrome_browser_context_menus.patch

diff --git chrome/browser/renderer_context_menu/render_view_context_menu.cc chrome/browser/renderer_context_menu/render_view_context_menu.cc
index 13ad2a7529bb1..0b003c26815e0 100644
--- chrome/browser/renderer_context_menu/render_view_context_menu.cc
+++ chrome/browser/renderer_context_menu/render_view_context_menu.cc
@@ -254,6 +254,13 @@ base::OnceCallback<void(RenderViewContextMenu*)>* GetMenuShownCallback() {
   return callback.get();
 }
 
+
+RenderViewContextMenu::MenuCreatedCallback* GetMenuCreatedCallback() {
+  static base::NoDestructor<RenderViewContextMenu::MenuCreatedCallback>
+      callback;
+  return callback.get();
+}
+
 enum class UmaEnumIdLookupType {
   GeneralEnumId,
   ContextSpecificEnumId,
@@ -463,6 +470,10 @@ int FindUMAEnumValueForCommand(int id, UmaEnumIdLookupType type) {
   if (ContextMenuMatcher::IsExtensionsCustomCommandId(id))
     return 1;
 
+  // Match the MENU_ID_USER_FIRST to MENU_ID_USER_LAST range from cef_types.h.
+  if (id >= 26500 && id <= 28500)
+    return 1;
+
   id = CollapseCommandsForUMA(id);
   const auto& map = GetIdcToUmaMap(type);
   auto it = map.find(id);
@@ -618,6 +629,14 @@ RenderViewContextMenu::RenderViewContextMenu(
   }
   set_content_type(
       ContextMenuContentTypeFactory::Create(source_web_contents_, params));
+
+  auto* cb = GetMenuCreatedCallback();
+  if (!cb->is_null()) {
+    first_observer_ = cb->Run(this);
+    if (first_observer_) {
+      observers_.AddObserver(first_observer_.get());
+    }
+  }
 }
 
 RenderViewContextMenu::~RenderViewContextMenu() = default;
@@ -973,6 +992,12 @@ void RenderViewContextMenu::InitMenu() {
   // menu, meaning that each menu item added/removed in this function will cause
   // it to visibly jump on the screen (see b/173569669).
   AppendQuickAnswersItems();
+
+  if (first_observer_) {
+    // Do this last so that the observer can optionally modify previously
+    // created items.
+    first_observer_->InitMenu(params_);
+  }
 }
 
 Profile* RenderViewContextMenu::GetProfile() const {
@@ -2594,6 +2619,12 @@ void RenderViewContextMenu::RegisterMenuShownCallbackForTesting(
   *GetMenuShownCallback() = std::move(cb);
 }
 
+// static
+void RenderViewContextMenu::RegisterMenuCreatedCallback(
+    MenuCreatedCallback cb) {
+  *GetMenuCreatedCallback() = cb;
+}
+
 ProtocolHandlerRegistry::ProtocolHandlerList
 RenderViewContextMenu::GetHandlersForLinkUrl() {
   ProtocolHandlerRegistry::ProtocolHandlerList handlers =
diff --git chrome/browser/renderer_context_menu/render_view_context_menu.h chrome/browser/renderer_context_menu/render_view_context_menu.h
index 5178db60ba644..845461049e54e 100644
--- chrome/browser/renderer_context_menu/render_view_context_menu.h
+++ chrome/browser/renderer_context_menu/render_view_context_menu.h
@@ -91,6 +91,12 @@ class RenderViewContextMenu : public RenderViewContextMenuBase {
   static void RegisterMenuShownCallbackForTesting(
       base::OnceCallback<void(RenderViewContextMenu*)> cb);
 
+  // Registers a callback that will be called each time a context menu is
+  // created.
+  using MenuCreatedCallback = base::RepeatingCallback<
+      std::unique_ptr<RenderViewContextMenuObserver>(RenderViewContextMenu*)>;
+  static void RegisterMenuCreatedCallback(MenuCreatedCallback cb);
+
  protected:
   Profile* GetProfile() const;
 
@@ -265,6 +271,9 @@ class RenderViewContextMenu : public RenderViewContextMenuBase {
   ui::SimpleMenuModel protocol_handler_submenu_model_;
   ProtocolHandlerRegistry* protocol_handler_registry_;
 
+  // An observer returned via MenuCreatedCallback that will be called first.
+  std::unique_ptr<RenderViewContextMenuObserver> first_observer_;
+
   // An observer that handles spelling suggestions, "Add to dictionary", and
   // "Use enhanced spell check" items.
   std::unique_ptr<SpellingMenuObserver> spelling_suggestions_menu_observer_;
diff --git chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
index feec153dcc146..0959c1020bad9 100644
--- chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
+++ chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
@@ -136,6 +136,9 @@ void RenderViewContextMenuViews::RunMenuAt(views::Widget* parent,
 bool RenderViewContextMenuViews::GetAcceleratorForCommandId(
     int command_id,
     ui::Accelerator* accel) const {
+  if (RenderViewContextMenu::GetAcceleratorForCommandId(command_id, accel))
+    return true;
+
   // There are no formally defined accelerators we can query so we assume
   // that Ctrl+C, Ctrl+V, Ctrl+X, Ctrl-A, etc do what they normally do.
   switch (command_id) {
diff --git components/renderer_context_menu/render_view_context_menu_base.cc components/renderer_context_menu/render_view_context_menu_base.cc
index 62100403d27f0..54182e7d97e3c 100644
--- components/renderer_context_menu/render_view_context_menu_base.cc
+++ components/renderer_context_menu/render_view_context_menu_base.cc
@@ -375,6 +375,17 @@ bool RenderViewContextMenuBase::IsCommandIdChecked(int id) const {
   return false;
 }
 
+bool RenderViewContextMenuBase::GetAcceleratorForCommandId(
+    int id,
+    ui::Accelerator* accelerator) const {
+  for (auto& observer : observers_) {
+    if (observer.IsCommandIdSupported(id))
+      return observer.GetAccelerator(id, accelerator);
+  }
+
+  return false;
+}
+
 void RenderViewContextMenuBase::ExecuteCommand(int id, int event_flags) {
   command_executed_ = true;
   RecordUsedItem(id);
diff --git components/renderer_context_menu/render_view_context_menu_base.h components/renderer_context_menu/render_view_context_menu_base.h
index 52002b190fded..ce3277e9f9350 100644
--- components/renderer_context_menu/render_view_context_menu_base.h
+++ components/renderer_context_menu/render_view_context_menu_base.h
@@ -81,6 +81,9 @@ class RenderViewContextMenuBase : public ui::SimpleMenuModel::Delegate,
 
   const ui::SimpleMenuModel& menu_model() const { return menu_model_; }
   const content::ContextMenuParams& params() const { return params_; }
+  content::WebContents* source_web_contents() const {
+    return source_web_contents_;
+  }
 
   // Returns true if the specified command id is known and valid for
   // this menu. If the command is known |enabled| is set to indicate
@@ -89,6 +92,9 @@ class RenderViewContextMenuBase : public ui::SimpleMenuModel::Delegate,
 
   // SimpleMenuModel::Delegate implementation.
   bool IsCommandIdChecked(int command_id) const override;
+  bool GetAcceleratorForCommandId(
+      int command_id,
+      ui::Accelerator* accelerator) const override;
   void ExecuteCommand(int command_id, int event_flags) override;
   void OnMenuWillShow(ui::SimpleMenuModel* source) override;
   void MenuClosed(ui::SimpleMenuModel* source) override;
@@ -119,6 +125,9 @@ class RenderViewContextMenuBase : public ui::SimpleMenuModel::Delegate,
   content::WebContents* GetWebContents() const override;
   content::BrowserContext* GetBrowserContext() const override;
 
+  // May return nullptr if the frame was deleted while the menu was open.
+  content::RenderFrameHost* GetRenderFrameHost() const;
+
  protected:
   friend class RenderViewContextMenuTest;
   friend class RenderViewContextMenuPrefsTest;
@@ -156,9 +165,6 @@ class RenderViewContextMenuBase : public ui::SimpleMenuModel::Delegate,
   // TODO(oshima): Remove this.
   virtual void AppendPlatformEditableItems() {}
 
-  // May return nullptr if the frame was deleted while the menu was open.
-  content::RenderFrameHost* GetRenderFrameHost() const;
-
   bool IsCustomItemChecked(int id) const;
   bool IsCustomItemEnabled(int id) const;
 
diff --git components/renderer_context_menu/render_view_context_menu_observer.cc components/renderer_context_menu/render_view_context_menu_observer.cc
index 2e2d05f91c646..85b256b2be9bd 100644
--- components/renderer_context_menu/render_view_context_menu_observer.cc
+++ components/renderer_context_menu/render_view_context_menu_observer.cc
@@ -15,3 +15,8 @@ bool RenderViewContextMenuObserver::IsCommandIdChecked(int command_id) {
 bool RenderViewContextMenuObserver::IsCommandIdEnabled(int command_id) {
   return false;
 }
+
+bool RenderViewContextMenuObserver::GetAccelerator(int command_id,
+                                                   ui::Accelerator* accel) {
+  return false;
+}
diff --git components/renderer_context_menu/render_view_context_menu_observer.h components/renderer_context_menu/render_view_context_menu_observer.h
index b360a8eb4e820..6f9023a629046 100644
--- components/renderer_context_menu/render_view_context_menu_observer.h
+++ components/renderer_context_menu/render_view_context_menu_observer.h
@@ -11,6 +11,10 @@ namespace content {
 struct ContextMenuParams;
 }
 
+namespace ui {
+class Accelerator;
+}
+
 // The interface used for implementing context-menu items. The following
 // instruction describe how to implement a context-menu item with this
 // interface.
@@ -100,6 +104,8 @@ class RenderViewContextMenuObserver {
   virtual bool IsCommandIdChecked(int command_id);
   virtual bool IsCommandIdEnabled(int command_id);
 
+  virtual bool GetAccelerator(int command_id, ui::Accelerator* accel);
+
   // Called when a user selects the specified context-menu item. This is
   // only called when the observer returns true for IsCommandIdSupported()
   // for that |command_id|.