compositor-worker: Initialize CW machinery plumbing to compositor and fire CW rAF callbacks.

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 95 matching lines @@
 #include "platform/PlatformGestureEvent.h"
 #include "platform/PlatformKeyboardEvent.h"
 #include "platform/PlatformMouseEvent.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/exported/WebActiveGestureAnimation.h"
 #include "platform/fonts/FontCache.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/CompositorFactory.h"
+#include "platform/graphics/CompositorMutatorClient.h"
 #include "platform/graphics/FirstPaintInvalidationTracking.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/Image.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/gpu/DrawingBuffer.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "platform/weborigin/SchemeRegistry.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebCompositeAndReadbackAsyncCallback.h"
@@ skipping 19 matching lines @@
 #include "public/web/WebMediaPlayerAction.h"
 #include "public/web/WebNode.h"
 #include "public/web/WebPlugin.h"
 #include "public/web/WebPluginAction.h"
 #include "public/web/WebRange.h"
 #include "public/web/WebSelection.h"
 #include "public/web/WebTextInputInfo.h"
 #include "public/web/WebViewClient.h"
 #include "public/web/WebWindowFeatures.h"
 #include "web/CompositionUnderlineVectorBuilder.h"
+#include "web/CompositorMutatorImpl.h"
 #include "web/ContextFeaturesClientImpl.h"
 #include "web/ContextMenuAllowedScope.h"
 #include "web/DatabaseClientImpl.h"
 #include "web/DevToolsEmulator.h"
 #include "web/FullscreenController.h"
 #include "web/InspectorOverlay.h"
 #include "web/LinkHighlightImpl.h"
 #include "web/PageOverlay.h"
 #include "web/PrerendererClientImpl.h"
 #include "web/ResizeViewportAnchor.h"
@@ skipping 4373 matching lines @@
 void WebViewImpl::forceNextWebGLContextCreationToFail()
 {
     WebGLRenderingContext::forceNextWebGLContextCreationToFail();
 }
 
 void WebViewImpl::forceNextDrawingBufferCreationToFail()
 {
     DrawingBuffer::forceNextDrawingBufferCreationToFail();
 }
 
+CompositorProxyClient* WebViewImpl::createCompositorProxyClient()
+{
+    if (!m_mutator.get()) {

[jbroman, 2016/04/20 19:24:51]

nit: "if (!m_mutator) {"

[flackr, 2016/04/25 14:06:28]

Done.

+        m_mutator = CompositorMutatorImpl::create();
+        m_layerTreeView->setMutatorClient(m_mutator->client());
+    }
+    return m_mutator->createCompositorProxyClient();
+}
+
 void WebViewImpl::updatePageOverlays()
 {
     if (m_pageColorOverlay)
         m_pageColorOverlay->update();
     if (InspectorOverlay* overlay = inspectorOverlay()) {
         PageOverlay* inspectorPageOverlay = overlay->pageOverlay();
         if (inspectorPageOverlay)
             inspectorPageOverlay->update();
     }
 }
@@ skipping 32 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