Implement frame attribution (FrameBlamer)

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 81 matching lines @@
 #include "core/timing/Performance.h"
 #include "modules/accessibility/AXObject.h"
 #include "modules/accessibility/AXObjectCacheImpl.h"
 #include "modules/credentialmanager/CredentialManagerClient.h"
 #include "modules/encryptedmedia/MediaKeysController.h"
 #include "modules/storage/StorageNamespaceController.h"
 #include "modules/webgl/WebGLRenderingContext.h"
 #include "platform/ContextMenu.h"
 #include "platform/ContextMenuItem.h"
 #include "platform/Cursor.h"
+#include "platform/EventTracer.h"
 #include "platform/Histogram.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/Logging.h"
 #include "platform/NotImplemented.h"
 #include "platform/PlatformGestureEvent.h"
 #include "platform/PlatformKeyboardEvent.h"
 #include "platform/PlatformMouseEvent.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
@@ skipping 4468 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink