ui: Add debug flag to show composited layer borders in ChromeOS UI.

cc/base/switches.cc

 // Copyright (c) 2012 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 "cc/base/switches.h"
 
 #include "base/command_line.h"
 
 namespace cc {
 namespace switches {
@@ skipping 41 matching lines @@
 
 // Enables multi-client Surface synchronization. In practice, this indicates
 // that LayerTreeHost expects to be given a valid LocalSurfaceId provided by
 // the parent compositor.
 const char kEnableSurfaceSynchronization[] = "enable-surface-synchronization";
 
 // Renders a border around compositor layers to help debug and study
 // layer compositing.
 const char kShowCompositedLayerBorders[] = "show-composited-layer-borders";
 const char kUIShowCompositedLayerBorders[] = "ui-show-layer-borders";
+const char kCompositedRenderPassBorders[] = "renderpass";
+const char kCompositedSurfaceBorders[] = "surface";
+const char kCompositedLayerBorders[] = "layer";
 
 // Renders a green border around GL composited texture quads to help
 // debug and study overlay support.
 const char kGlCompositedTextureQuadBorder[] =
     "gl-composited-texture-quad-border";
 
 // Draws a heads-up-display showing Frames Per Second as well as GPU memory
 // usage. If you also use --enable-logging=stderr --vmodule="head*=1" then FPS
 // will also be output to the console log.
 const char kShowFPSCounter[] = "show-fps-counter";
@@ skipping 37 matching lines @@
 const char kCCLayerTreeTestNoTimeout[] = "cc-layer-tree-test-no-timeout";
 
 // Increases timeout for memory checkers.
 const char kCCLayerTreeTestLongTimeout[] = "cc-layer-tree-test-long-timeout";
 
 // Makes pixel tests write their output instead of read it.
 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
 
 }  // namespace switches
 }  // namespace cc