Enable audio/video tag in content_shell

content/app/content_main_runner.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/public/app/content_main_runner.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/trace_event.h"
+#include "base/file_path.h"
 #include "base/i18n/icu_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/stats_table.h"
+#include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "content/browser/browser_main.h"
 #include "content/common/set_process_title.h"
 #include "content/public/app/content_main_delegate.h"
 #include "content/public/app/startup_helper_win.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_paths.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "content/public/common/sandbox_init.h"
 #include "crypto/nss_util.h"
 #include "ipc/ipc_switches.h"
+#include "media/base/media.h"
 #include "sandbox/src/sandbox_types.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/base/ui_base_paths.h"
 #include "webkit/glue/webkit_glue.h"
 
 #if defined(OS_WIN)
 #include <atlbase.h>
 #include <atlapp.h>
 #include <malloc.h>
 #elif defined(OS_MACOSX)
@@ skipping 150 matching lines @@
 int RunZygote(const content::MainFunctionParams& main_function_params,
               content::ContentMainDelegate* delegate) {
   static const MainFunction kMainFunctions[] = {
     { switches::kRendererProcess,    RendererMain },
     { switches::kWorkerProcess,      WorkerMain },
     { switches::kPpapiPluginProcess, PpapiPluginMain },
     { switches::kUtilityProcess,     UtilityMain },
   };
 
   scoped_ptr<content::ZygoteForkDelegate> zygote_fork_delegate;
-  if (delegate) zygote_fork_delegate.reset(delegate->ZygoteStarting());
+  if (delegate) {
+    zygote_fork_delegate.reset(delegate->ZygoteStarting());
+    // Each Renderer we spawn will re-attempt initialization of the media
+    // libraries, at which point failure will be detected and handled, so
+    // we do not need to cope with initialization failures here.
+    FilePath media_path;
+    if (PathService::Get(content::DIR_MEDIA_LIBS, &media_path))
+      media::InitializeMediaLibrary(media_path);
+  }
 
   // This function call can return multiple times, once per fork().
   if (!ZygoteMain(main_function_params, zygote_fork_delegate.get()))
     return 1;
 
   if (delegate) delegate->ZygoteForked();
 
   // Zygote::HandleForkRequest may have reallocated the command
   // line so update it here with the new version.
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
@@ skipping 345 matching lines @@
 }  // namespace
 
 namespace content {
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content