Revert 217768 "Adding key press detection in the browser process."

trunk/src/content/browser/browser_main_loop.cc

Index: trunk/src/content/browser/browser_main_loop.cc
===================================================================
--- trunk/src/content/browser/browser_main_loop.cc	(revision 217773)
+++ trunk/src/content/browser/browser_main_loop.cc	(working copy)
@@ -52,7 +52,6 @@
 #include "crypto/nss_util.h"
 #include "media/audio/audio_manager.h"
 #include "media/base/media.h"
-#include "media/base/user_input_monitor.h"
 #include "media/midi/midi_manager.h"
 #include "net/base/network_change_notifier.h"
 #include "net/socket/client_socket_factory.h"
@@ -873,14 +872,6 @@
         audio_manager_.get(), media_stream_manager_.get()));
   }
 
-  {
-    TRACE_EVENT0(
-        "startup",
-        "BrowserMainLoop::BrowserThreadsStarted::InitUserInputMonitor");
-    user_input_monitor_ = media::UserInputMonitor::Create(
-        io_thread_->message_loop_proxy(), main_thread_->message_loop_proxy());
-  }
-
   // Alert the clipboard class to which threads are allowed to access the
   // clipboard:
   std::vector<base::PlatformThreadId> allowed_clipboard_threads;