Show camera and microphone status indicators.

chrome/browser/media/media_internals.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/media/media_internals.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/media/media_internals_observer.h"
+#include "chrome/browser/media/media_stream_capture_indicator.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_ui.h"
 #include "media/base/media_log.h"
 #include "media/base/media_log_event.h"
 
 using content::BrowserThread;
 
 MediaInternals* MediaInternals::GetInstance() {
   return Singleton<MediaInternals>::get();
 }
@@ skipping 35 matching lines @@
   // Notify observers that |event| has occured.
   DictionaryValue dict;
   dict.SetInteger("renderer", render_process_id);
   dict.SetInteger("player", event.id);
   dict.SetString("type", media::MediaLog::EventTypeToString(event.type));
   dict.SetDouble("time", event.time.ToDoubleT());
   dict.Set("params", event.params.DeepCopy());
   SendUpdate("media.onMediaEvent", &dict);
 }
 
+void MediaInternals::OnCaptureDevicesOpened(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  if (!media_stream_capture_indicator_.get())
+    media_stream_capture_indicator_ = new MediaStreamCaptureIndicator();
+  media_stream_capture_indicator_->CaptureDevicesOpened(render_process_id,
+                                                        render_view_id,
+                                                        devices);
+}
+
+void MediaInternals::OnCaptureDevicesClosed(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  media_stream_capture_indicator_->CaptureDevicesClosed(render_process_id,
+                                                        render_view_id,
+                                                        devices);
+}
+
 void MediaInternals::AddObserver(MediaInternalsObserver* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   observers_.AddObserver(observer);
 }
 
 void MediaInternals::RemoveObserver(MediaInternalsObserver* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 32 matching lines @@
 
 void MediaInternals::SendUpdate(const std::string& function, Value* value) {
   // Only bother serializing the update to JSON if someone is watching.
   if (observers_.size()) {
     std::vector<const Value*> args;
     args.push_back(value);
     string16 update = content::WebUI::GetJavascriptCall(function, args);
     FOR_EACH_OBSERVER(MediaInternalsObserver, observers_, OnUpdate(update));
   }
 }