Add a new ozone switch to enable surfaceless output mode.

content/browser/gpu/gpu_process_host.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/gpu_process_host.h"
 
 #include "base/base64.h"
 #include "base/base_switches.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 884 matching lines @@
     switches::kV,
     switches::kVModule,
 #if defined(OS_MACOSX)
     switches::kEnableSandboxLogging,
 #endif
 #if defined(USE_AURA)
     switches::kUIPrioritizeInGpuProcess,
 #endif
 #if defined(USE_OZONE)
     switches::kOzonePlatform,
+    switches::kOzoneUseSurfaceless,
 #endif
 #if defined(USE_X11) && !defined(OS_CHROMEOS)
     switches::kX11Display,
 #endif
   };
   cmd_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
                              arraysize(kSwitchNames));
   cmd_line->CopySwitchesFrom(
       browser_command_line, switches::kGpuSwitches, switches::kNumGpuSwitches);
   cmd_line->CopySwitchesFrom(
@@ skipping 165 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content