Added preliminary support for tile rasterization with Ganesh

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 133 matching lines @@
 // Makes pixel tests write their output instead of read it.
 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
 
 // Disable textures using RGBA_4444 layout.
 const char kDisable4444Textures[] = "disable-4444-textures";
 
 // Disable touch hit testing in the compositor.
 const char kDisableCompositorTouchHitTesting[] =
     "disable-compositor-touch-hit-testing";
 
+// Enable tile rasterization with Ganesh.
+const char kEnableGpuRasterizing[] = "enable-gpu-rasterizing";
+
 bool IsLCDTextEnabled() {
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(cc::switches::kDisableLCDText))
     return false;
   else if (command_line->HasSwitch(cc::switches::kEnableLCDText))
     return true;
 
 #if defined(OS_ANDROID)
   return false;
 #else
@@ skipping 27 matching lines @@
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
   if (command_line.HasSwitch(cc::switches::kDisableMapImage))
     return false;
   else if (command_line.HasSwitch(cc::switches::kEnableMapImage))
     return true;
 
   return false;
 }
 
+bool IsGpuRasterizingEnabled() {

[reveman, 2013/11/24 21:56:57]

Do we need this helper function when it just returns the value of
HasSwitch(cc::switches::kEnableGpuRasterizing)?

[slavi, 2013/11/25 23:13:14]

Also removed. See humper's patch.

+  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  return command_line.HasSwitch(cc::switches::kEnableGpuRasterizing);
+}
+
 }  // namespace switches
 }  // namespace cc