mustash: enable GPU Compositing in renderer

content/renderer/renderer_main.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 "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/leak_annotations.h"
 #include "base/feature_list.h"
 #include "base/i18n/rtl.h"
@@ skipping 76 matching lines @@
   // Don't use the TRACE_EVENT0 macro because the tracing infrastructure doesn't
   // expect synchronous events around the main loop of a thread.
   TRACE_EVENT_ASYNC_BEGIN0("startup", "RendererMain", 0);
 
   const base::TimeTicks renderer_main_entry_time = base::TimeTicks::Now();
 
   base::trace_event::TraceLog::GetInstance()->SetProcessName("Renderer");
   base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
       kTraceEventRendererProcessSortIndex);
 
+  const base::CommandLine& parsed_command_line = parameters.command_line;
+
 #if defined(MOJO_SHELL_CLIENT)
-  MojoShellConnectionImpl::Create();
+  if (parsed_command_line.HasSwitch(switches::kEnableMojoShellConnection))
+    MojoShellConnectionImpl::Create();
 #endif
 
-  const base::CommandLine& parsed_command_line = parameters.command_line;
-
 #if defined(OS_MACOSX)
   base::mac::ScopedNSAutoreleasePool* pool = parameters.autorelease_pool;
 #endif  // OS_MACOSX
 
 #if defined(OS_CHROMEOS)
   // As Zygote process starts up earlier than browser process gets its own
   // locale (at login time for Chrome OS), we have to set the ICU default
   // locale for renderer process here.
   // ICU locale will be used for fallback font selection etc.
   if (parsed_command_line.HasSwitch(switches::kLang)) {
@@ skipping 119 matching lines @@
     // ignore shutdown-only leaks.
     __lsan_do_leak_check();
 #endif
   }
   platform.PlatformUninitialize();
   TRACE_EVENT_ASYNC_END0("startup", "RendererMain", 0);
   return 0;
 }
 
 }  // namespace content