Convert force video overlay to preference

chromecast/browser/cast_content_browser_client.cc

 // Copyright 2014 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 "chromecast/browser/cast_content_browser_client.h"
 
 #include <string>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
@@ skipping 121 matching lines @@
   // controlled by GetBreakpadClient()->EnableBreakpadForProcess(), therefore
   // it's ok to add switch to every process here.
   if (breakpad::IsCrashReporterEnabled()) {
     command_line->AppendSwitch(switches::kEnableCrashReporter);
   }
 
   // Renderer process command-line
   if (process_type == switches::kRendererProcess) {
     // Any browser command-line switches that should be propagated to
     // the renderer go here.
-#if defined(OS_ANDROID)
-    command_line->AppendSwitch(switches::kForceUseOverlayEmbeddedVideo);
-#endif  // defined(OS_ANDROID)
 
     if (browser_command_line->HasSwitch(switches::kEnableCmaMediaPipeline))
       command_line->AppendSwitch(switches::kEnableCmaMediaPipeline);
   }
 
 #if defined(OS_LINUX)
   // Necessary for accelerated 2d canvas.  By default on Linux, Chromium assumes
   // GLES2 contexts can be lost to a power-save mode, which breaks GPU canvas
   // apps.
   if (process_type == switches::kGpuProcess) {
@@ skipping 213 matching lines @@
         process_type, dumps_path, false /* upload */);
   // StartUploaderThread() even though upload is diferred.
   // Breakpad-related memory is freed in the uploader thread.
   crash_handler->StartUploaderThread();
   return crash_handler;
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace shell
 }  // namespace chromecast