Explicit initialization of aura::Env for browser shell.

chrome/browser/chrome_browser_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 "chrome/browser/chrome_browser_main.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 176 matching lines @@
 #endif
 
 #if defined(ENABLE_RLZ)
 #include "chrome/browser/rlz/rlz.h"
 #endif
 
 #if defined(TOOLKIT_VIEWS)
 #include "ui/views/focus/accelerator_handler.h"
 #endif
 
+#if defined(USE_AURA)
+#include "ui/aura/env.h"
+#endif
+
 using content::BrowserThread;
 
 namespace {
 
 // This function provides some ways to test crash and assertion handling
 // behavior of the program.
 void HandleTestParameters(const CommandLine& command_line) {
   // This parameter causes an assertion.
   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
     DCHECK(false);
@@ skipping 1252 matching lines @@
   // only once we log in.
   std::vector<Profile*> last_opened_profiles;
 #else
   std::vector<Profile*> last_opened_profiles =
       g_browser_process->profile_manager()->GetLastOpenedProfiles();
 #endif
 
   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
     RegisterComponentsForUpdate(parsed_command_line());
 
+#if defined(USE_AURA)
+  // Env creates the compositor. Aura widgets need the compositor to be created
+  // before they can be initialized by the browser.
+  aura::Env::CreateInstance();
+#endif
+
   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
                               profile_, last_opened_profiles, &result_code)) {
 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
     // Initialize autoupdate timer. Timer callback costs basically nothing
     // when browser is not in persistent mode, so it's OK to let it ride on
     // the main thread. This needs to be done here because we don't want
     // to start the timer when Chrome is run inside a test harness.
     browser_process_->StartAutoupdateTimer();
 #endif
 
@@ skipping 166 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif
 #endif
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }