chrome://media-internals: update MediaInternals when devices capabilities are enumerated.

content/browser/media/media_internals_proxy.cc

 // Copyright (c) 2012 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 "content/browser/media/media_internals_proxy.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/media/media_internals_handler.h"
 #include "content/public/browser/content_browser_client.h"
@@ skipping 117 matching lines @@
 
 void MediaInternalsProxy::StopObservingMediaInternalsOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   MediaInternals::GetInstance()->RemoveUpdateCallback(update_callback_);
   if (GetContentClient()->browser()->GetNetLog()) {
     net::NetLog* net_log = GetContentClient()->browser()->GetNetLog();
     net_log->RemoveThreadSafeObserver(this);
   }
 }
 
 void MediaInternalsProxy::GetEverythingOnIOThread() {

[wolenetz, 2014/10/09 20:51:43]

ditto: s/Everything/something audio specific/ for now, or leave as-is until
everything includes sending also the video capabilities?

[mcasas, 2014/10/10 11:30:42]

Added a TODO(), I don't think it's worth renaming this method and the caller
and reverting the rename in the next CL...

   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  MediaInternals::GetInstance()->SendEverything();
+  MediaInternals::GetInstance()->SendAudioStreamData();
 }
 
 void MediaInternalsProxy::UpdateUIOnUIThread(const base::string16& update) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // Don't forward updates to a destructed UI.
   if (handler_)
     handler_->OnUpdate(update);
 }
 
 void MediaInternalsProxy::AddNetEventOnUIThread(base::Value* entry) {
@@ skipping 22 matching lines @@
     const std::string& function, base::Value* args) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   scoped_ptr<base::Value> args_value(args);
   std::vector<const base::Value*> args_vector;
   args_vector.push_back(args_value.get());
   base::string16 update = WebUI::GetJavascriptCall(function, args_vector);
   UpdateUIOnUIThread(update);
 }
 
 }  // namespace content