Mac AVFoundation/QTKit: delay DeviceMonitorMac startup to first GetUserMedia.

content/browser/browser_main_loop.h

 // 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.
 
 #ifndef CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 83 matching lines @@
     return media_stream_manager_.get();
   }
   media::UserInputMonitor* user_input_monitor() const {
     return user_input_monitor_.get();
   }
   media::MidiManager* midi_manager() const { return midi_manager_.get(); }
   base::Thread* indexed_db_thread() const { return indexed_db_thread_.get(); }
 
   bool is_tracing_startup() const { return is_tracing_startup_; }
 
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+  DeviceMonitorMac* device_monitor_mac() const {
+    return device_monitor_mac_.get();
+  }
+#endif
+
  private:
   class MemoryObserver;
   // For ShutdownThreadsAndCleanUp.
   friend class BrowserShutdownImpl;
 
   void InitializeMainThread();
 
   // Called just before creating the threads
   int PreCreateThreads();
 
@@ skipping 66 matching lines @@
   scoped_ptr<base::debug::TraceEventSystemStatsMonitor> system_stats_monitor_;
 
   bool is_tracing_startup_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_