Enable GPU rasterization by default on Android

content/browser/gpu/compositor_util.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 "content/browser/gpu/compositor_util.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
@@ skipping 254 matching lines @@
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
   if (!IsImplSidePaintingEnabled())
     return false;
 
   if (command_line.HasSwitch(switches::kDisableGpuRasterization))
     return false;
   else if (command_line.HasSwitch(switches::kEnableGpuRasterization))
     return true;
 
+  if (GpuDataManagerImpl::GetInstance()->IsFeatureBlacklisted(
+          gpu::GPU_FEATURE_TYPE_GPU_RASTERIZATION)) {
+    return false;
+  }
+
   if (command_line.HasSwitch(
           switches::kEnableBleedingEdgeRenderingFastPaths)) {
     return true;
   }
 
-  if (GpuDataManagerImpl::GetInstance()->IsFeatureBlacklisted(
-          gpu::GPU_FEATURE_TYPE_GPU_RASTERIZATION)) {
-    return false;
-  }
-
-  // Change this to true to turn on the feature by default.
+#if defined(OS_ANDROID)
+  return true;
+#else
   return false;
+#endif

[Zhenyao Mo, 2014/04/17 21:24:14]

remove this

[ajuma, 2014/04/17 22:04:00]

Done.

 }
 
 bool IsForceGpuRasterizationEnabled() {
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
   if (!IsImplSidePaintingEnabled())
     return false;
 
   return command_line.HasSwitch(switches::kForceGpuRasterization);
 }
@@ skipping 107 matching lines @@
   return problem_list;
 }
 
 base::Value* GetDriverBugWorkarounds() {
   base::ListValue* workaround_list = new base::ListValue();
   GpuDataManagerImpl::GetInstance()->GetDriverBugWorkarounds(workaround_list);
   return workaround_list;
 }
 
 }  // namespace content