[CMake] Sync unified build with Cocoa ports

https://bugs.webkit.org/show_bug.cgi?id=188732

Reviewed by Tim Horton.

Source/WebCore:

For iOS, disambiguate between ::WebEvent declared in PlatformKeyboardEvent.h and
WebCore::WebEvent declared in WebEvent.h. It's expected that we'll have to deal with random
issues like this when modifying unrelated source files in higher-level projects, since any
change to the sources list changes which files get bundled together, and headers from
lower-level projects that were not included before may now be included together.

* platform/PlatformKeyboardEvent.h:
(WebCore::PlatformKeyboardEvent::event const):

Source/WebKit:

Sync unified build with Cocoa ports. This enables unified build for WebKit/Platform and
WebKit/Shared.

Lots of files need to be moved around since the existing Sources.txt was not copied from
CMakeLists.txt. This replaces the Sources.txt with the sources list from CMakeList.txt.
Files that are not built for Cocoa are moved to SourcesGTK.txt, SourcesWPE.txt, and
PlatformWin.cmake. Files that are built only on Cocoa are moved to SourcesCocoa.txt. There's
plenty of room to determine if many of these files really need to be platform-specific in
the future, but let's not change that now.

Unfortunately, several files under Shared and PluginProcess need to be un-unified to be
usable for GTK's WebKitPluginProcess2. I've never managed to understand why, but it won't
link otherwise. Fortunately, this only affects a few files (listed in
PluginProcessGTK2_SOURCES), only a couple dozen of which are cross-platform.

* CMakeLists.txt:
* PlatformWin.cmake:
* Sources.txt:
* SourcesCocoa.txt:
* SourcesGTK.txt:
* SourcesWPE.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@235098 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebCore/ChangeLog

@@ -1,3 +1,19 @@
+2018-08-20  Michael Catanzaro  <[email protected]>
+
+        [CMake] Sync unified build with Cocoa ports
+        https://bugs.webkit.org/show_bug.cgi?id=188732
+
+        Reviewed by Tim Horton.
+
+        For iOS, disambiguate between ::WebEvent declared in PlatformKeyboardEvent.h and
+        WebCore::WebEvent declared in WebEvent.h. It's expected that we'll have to deal with random
+        issues like this when modifying unrelated source files in higher-level projects, since any
+        change to the sources list changes which files get bundled together, and headers from
+        lower-level projects that were not included before may now be included together.
+
+        * platform/PlatformKeyboardEvent.h:
+        (WebCore::PlatformKeyboardEvent::event const):
+
 2018-08-20  David Kilzer  <[email protected]>
 
         REGRESSION (r223192): Remove invalid `path` for Modules/geolocation/ios folder

Source/WebCore/platform/PlatformKeyboardEvent.h

@@ -142,7 +142,7 @@ namespace WebCore {
 #if !PLATFORM(IOS)
         NSEvent* macEvent() const { return m_macEvent.get(); }
 #else
-        WebEvent *event() const { return m_Event.get(); }
+        ::WebEvent *event() const { return m_Event.get(); }
 #endif
 #endif
 
@@ -199,7 +199,7 @@ namespace WebCore {
 #if !PLATFORM(IOS)
         RetainPtr<NSEvent> m_macEvent;
 #else
-        RetainPtr<WebEvent> m_Event;
+        RetainPtr<::WebEvent> m_Event;
 #endif
 #endif
 #if PLATFORM(GTK)