Move timing files into base/time, install forwarding headers.

content/browser/browser_main_loop.h

Index: content/browser/browser_main_loop.h
diff --git a/content/browser/browser_main_loop.h b/content/browser/browser_main_loop.h
index 80a39830429b17f90a7cefd4c40829091bb25c7d..7184b4cc882236a6b6b0ede0b7b3785c3ebc8e27 100644
--- a/content/browser/browser_main_loop.h
+++ b/content/browser/browser_main_loop.h
@@ -10,9 +10,9 @@
 #include "content/browser/browser_process_sub_thread.h"
 
 class CommandLine;
-class HighResolutionTimerManager;
 
 namespace base {
+class HighResolutionTimerManager;
 class MessageLoop;
 class PowerMonitor;
 class SystemMonitor;
@@ -106,7 +106,7 @@ class CONTENT_EXPORT BrowserMainLoop {
   scoped_ptr<base::MessageLoop> main_message_loop_;
   scoped_ptr<base::SystemMonitor> system_monitor_;
   scoped_ptr<base::PowerMonitor> power_monitor_;
-  scoped_ptr<HighResolutionTimerManager> hi_res_timer_manager_;
+  scoped_ptr<base::HighResolutionTimerManager> hi_res_timer_manager_;
   scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
   scoped_ptr<media::AudioManager> audio_manager_;
   scoped_ptr<media::MIDIManager> midi_manager_;