cc: Add strict layer property change checking and handle bounds changes during paint.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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 "content/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 247 matching lines @@
     if (GetSwitchValueAsInt(
             *cmd,
             cc::switches::kMaxUnusedResourceMemoryUsagePercentage,
             0, 100,
             &max_unused_resource_memory_percentage)) {
       settings.max_unused_resource_memory_percentage =
           max_unused_resource_memory_percentage;
     }
   }
 
+  settings.strict_layer_property_change_checking =
+      cmd->HasSwitch(cc::switches::kStrictLayerPropertyChangeChecking);
+
 #if defined(OS_ANDROID)
   // TODO(danakj): Move these to the android code.
   settings.can_use_lcd_text = false;
   settings.max_partial_texture_updates = 0;
   settings.use_linear_fade_scrollbar_animator = true;
   settings.solid_color_scrollbars = true;
   settings.solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128);
   settings.solid_color_scrollbar_thickness_dip = 3;
   settings.highp_threshold_min = 2048;
 #endif
@@ skipping 270 matching lines @@
   return RenderThreadImpl::current()->OffscreenContextProviderForMainThread();
 }
 
 scoped_refptr<cc::ContextProvider>
 RenderWidgetCompositor::OffscreenContextProviderForCompositorThread() {
   return RenderThreadImpl::current()->
       OffscreenContextProviderForCompositorThread();
 }
 
 }  // namespace content