Adding key press detection in the browser process.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index d3ba06e9f4380dccc43ad274d1aafea87ea6f705..b3cd4670a7f2b4e6728a826bff08cc3ff795c0e8 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -618,11 +618,14 @@ void RenderProcessHostImpl::CreateMessageFilters() {
   channel_->AddFilter(new AudioInputRendererHost(
       audio_manager,
       media_stream_manager,
-      BrowserMainLoop::GetInstance()->audio_mirroring_manager()));
+      BrowserMainLoop::GetInstance()->audio_mirroring_manager(),
+      BrowserMainLoop::GetInstance()->user_input_monitor()));
   channel_->AddFilter(new AudioRendererHost(
-      GetID(), audio_manager,
+      GetID(),
+      audio_manager,
       BrowserMainLoop::GetInstance()->audio_mirroring_manager(),
-      media_internals, media_stream_manager));
+      media_internals,
+      media_stream_manager));
   channel_->AddFilter(
       new MIDIHost(BrowserMainLoop::GetInstance()->midi_manager()));
   channel_->AddFilter(new MIDIDispatcherHost(GetID(), browser_context));