Plumb media data from renderers up to MediaInternals in the browser process.

content/browser/renderer_host/render_message_filter.cc

Index: content/browser/renderer_host/render_message_filter.cc
diff --git a/content/browser/renderer_host/render_message_filter.cc b/content/browser/renderer_host/render_message_filter.cc
index 8812e6159743a2ecd377dcbc03af929370b9ef42..15beeba86727942ad24138540d7642e2c31f14f0 100644
--- a/content/browser/renderer_host/render_message_filter.cc
+++ b/content/browser/renderer_host/render_message_filter.cc
@@ -24,8 +24,10 @@
 #include "content/browser/ppapi_plugin_process_host.h"
 #include "content/browser/ppapi_broker_process_host.h"
 #include "content/browser/renderer_host/browser_render_process_host.h"
+#include "content/browser/renderer_host/media/media_observer.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
+#include "content/browser/resource_context.h"
 #include "content/browser/user_metrics.h"
 #include "content/common/content_switches.h"
 #include "content/common/desktop_notification_messages.h"
@@ -35,6 +37,7 @@
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_platform_file.h"
 #include "media/audio/audio_util.h"
+#include "media/base/media_log_event.h"
 #include "net/base/cookie_monster.h"
 #include "net/base/host_resolver_impl.h"
 #include "net/base/io_buffer.h"
@@ -369,6 +372,7 @@ bool RenderMessageFilter::OnMessageReceived(const IPC::Message& message,
     IPC_MESSAGE_HANDLER(ViewHostMsg_AsyncOpenFile, OnAsyncOpenFile)
     IPC_MESSAGE_HANDLER(ViewHostMsg_GetHardwareSampleRate,
                         OnGetHardwareSampleRate)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_MediaLogEvent, OnMediaLogEvent)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
 
@@ -861,6 +865,10 @@ void RenderMessageFilter::AsyncOpenFileOnFileThread(const FilePath& path,
           this, &RenderMessageFilter::Send, reply));
 }
 
+void RenderMessageFilter::OnMediaLogEvent(const media::MediaLogEvent& event) {
+  resource_context_.media_observer()->OnMediaEvent(render_process_id_, event);
+}
+
 void RenderMessageFilter::CheckPolicyForCookies(
     const GURL& url,
     const GURL& first_party_for_cookies,