Adding key press detection in the browser process.

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index cc45bc237509b98a2fa1ff4c32d6c8c1a8d319e5..cb2cb3361755fa9efdc693a1e10b3f0ba03aaef9 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -47,6 +47,7 @@
 #include "content/public/common/result_codes.h"
 #include "crypto/nss_util.h"
 #include "media/audio/audio_manager.h"
+#include "media/audio/key_press_monitor.h"
 #include "media/base/media.h"
 #include "media/midi/midi_manager.h"
 #include "net/base/network_change_notifier.h"
@@ -414,6 +415,11 @@ void BrowserMainLoop::MainMessageLoopStart() {
     audio_manager_.reset(media::AudioManager::Create());
   }
   {
+    TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:KeyPressMonitor")
+    key_press_monitor_.reset(
+        new media::KeyPressMonitor(audio_manager_->GetMessageLoop()));
+  }
+  {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:MIDIManager")
     midi_manager_.reset(media::MIDIManager::Create());
   }