Bug 1682030 - Remove OSX interposer. r=haik

Removes the mac plugin_interposer (and the related NSCursorInfo behavior), as part of removing all of NPAPI plugin support, since it has no other clients.

Differential Revision: https://phabricator.services.mozilla.com/D107142

CLOBBER

@@ -22,4 +22,5 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.
 
-Merge day clobber
+Merge day clobber
+Bug 1682030 - OSX builds complain about TestPlugin after that product is removed from tree

browser/installer/package-manifest.in

@@ -90,7 +90,6 @@
 #endif
 #ifdef XP_MACOSX
 @BINPATH@/@[email protected]/
-@BINPATH@/@DLL_PREFIX@plugin_child_interpose@DLL_SUFFIX@
 #else
 @BINPATH@/@MOZ_CHILD_PROCESS_NAME@
 #endif

dom/plugins/ipc/PPluginModule.ipdl

@@ -12,7 +12,6 @@ include protocol PFunctionBroker;
 using NPError from "npapi.h";
 using NPNVariable from "npapi.h";
 using mozilla::dom::NativeThreadId from "mozilla/dom/NativeThreadId.h";
-using class mac_plugin_interposing::NSCursorInfo from "mozilla/plugins/PluginMessageUtils.h";
 using struct nsID from "nsID.h";
 using struct mozilla::plugins::NPAudioDeviceChangeDetailsIPC from "mozilla/plugins/PluginMessageUtils.h";
 using struct mozilla::plugins::NPAudioDeviceStateChangedIPC from "mozilla/plugins/PluginMessageUtils.h";
@@ -127,12 +126,6 @@ parent:
                          double aWidth, double aHeight);
   async PluginHideWindow(uint32_t aWindowId);
 
-  // OS X Specific calls to allow the plugin to manage the cursor.
-  async SetCursor(NSCursorInfo cursorInfo);
-  async ShowCursor(bool show);
-  async PushCursor(NSCursorInfo cursorInfo);
-  async PopCursor();
-
   sync NPN_SetException(nsCString message);
 
   async NPN_ReloadPlugins(bool aReloadPages);