Add flag to disable impl-side painting

webkit/compositor_bindings/web_layer_tree_view_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "web_layer_tree_view_impl.h"
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "cc/font_atlas.h"
 #include "cc/input_handler.h"
 #include "cc/layer.h"
 #include "cc/layer_tree_host.h"
 #include "cc/switches.h"
 #include "cc/thread.h"
+#include "cc/util.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebInputHandler.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayer.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeViewClient.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeView.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRenderingStats.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
 #include "web_layer_impl.h"
 #include "web_to_ccinput_handler_adapter.h"
 #include "webkit/compositor_bindings/web_rendering_stats_impl.h"
@@ skipping 20 matching lines @@
     settings.rightAlignedSchedulingEnabled = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnableRightAlignedScheduling);
     settings.acceleratedAnimationEnabled = webSettings.acceleratedAnimationEnabled;
     settings.pageScalePinchZoomEnabled = webSettings.pageScalePinchZoomEnabled;
     settings.refreshRate = webSettings.refreshRate;
     settings.defaultTileSize = webSettings.defaultTileSize;
     settings.maxUntiledLayerSize = webSettings.maxUntiledLayerSize;
     settings.initialDebugState.showFPSCounter = webSettings.showFPSCounter;
     settings.initialDebugState.showPaintRects = webSettings.showPaintRects;
     settings.initialDebugState.showPlatformLayerTree = webSettings.showPlatformLayerTree;
     settings.initialDebugState.showDebugBorders = webSettings.showDebugBorders;
-    settings.implSidePainting = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnableImplSidePainting);
+    settings.implSidePainting = cc::IsImplSidePaintingEnabled(CommandLine::ForCurrentProcess());
     settings.recordRenderingStats = webSettings.recordRenderingStats;
     settings.useCheapnessEstimator = CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseCheapnessEstimator);
 
     settings.calculateTopControlsPosition = CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableTopControlsPositionCalculation);
     if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTopControlsHeight)) {
         std::string controls_height_str =
             CommandLine::ForCurrentProcess()->GetSwitchValueASCII(switches::kTopControlsHeight);
         double controls_height;
         if (base::StringToDouble(controls_height_str, &controls_height) && controls_height > 0)
             settings.topControlsHeight = controls_height;
@@ skipping 240 matching lines @@
 {
     m_client->didCompleteSwapBuffers();
 }
 
 void WebLayerTreeViewImpl::scheduleComposite()
 {
     m_client->scheduleComposite();
 }
 
 } // namespace WebKit