Plumb render view ID to media observer

chrome/browser/media/media_internals.cc

Index: chrome/browser/media/media_internals.cc
diff --git a/chrome/browser/media/media_internals.cc b/chrome/browser/media/media_internals.cc
index cca5c7650b2cfa132099abedff26a1649a81176b..2fb9faf1a4d1b70b07587f41610886ebc724db3b 100644
--- a/chrome/browser/media/media_internals.cc
+++ b/chrome/browser/media/media_internals.cc
@@ -9,11 +9,15 @@
 #include "base/stringprintf.h"
 #include "chrome/browser/media/media_internals_observer.h"
 #include "chrome/browser/media/media_stream_capture_indicator.h"
+#include "chrome/browser/tab_contents/tab_util.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "media/base/media_log.h"
 #include "media/base/media_log_event.h"
 
+#include "base/utf_string_conversions.h"
+
 using content::BrowserThread;
 
 MediaInternals* MediaInternals::GetInstance() {
@@ -37,10 +41,29 @@ void MediaInternals::OnSetAudioStreamPlaying(
 }
 
 void MediaInternals::OnSetAudioStreamStatus(
-    void* host, int stream_id, const std::string& status) {
+    void* host,
+    int stream_id,
+    int render_process_id,
+    int render_view_id,
+    const std::string& status) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   UpdateAudioStream(host, stream_id,
                     "status", Value::CreateStringValue(status));
+
+  content::WebContents* web_content =
+      tab_util::GetWebContentsByID(render_process_id, render_view_id);
+  if (web_content) {
+    string16 tab_title = web_content->GetTitle();
+    fprintf(stderr, "%s (%d, %d) - title: '%s'\n",
+        __PRETTY_FUNCTION__, render_process_id, render_view_id,
+        UTF16ToUTF8(tab_title).c_str());
+    UpdateAudioStream(host, stream_id,
+                      "tabtitle",
+                      Value::CreateStringValue(tab_title));
+  } else {
+    fprintf(stderr, "%s (%d, %d) - NULL web_contents\n",
+        __PRETTY_FUNCTION__, render_process_id, render_view_id);
+  }
 }
 
 void MediaInternals::OnSetAudioStreamVolume(