Move chrome://media-internals to content. This allows us to hide implementation details from the pu…

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 "chrome/browser/ui/webui/media/media_internals_proxy.h"
+#include "content/browser/media/media_internals_proxy.h"
 
 #include "base/bind.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/io_thread.h"
-#include "chrome/browser/media/media_internals.h"
-#include "chrome/browser/net/chrome_net_log.h"
-#include "chrome/browser/ui/webui/media/media_internals_handler.h"
+#include "base/message_loop.h"
+#include "content/browser/media/media_internals_handler.h"
+#include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_ui.h"
 
-using content::BrowserThread;
+namespace content {
 
 static const int kMediaInternalsProxyEventDelayMilliseconds = 100;
 
 static const net::NetLog::EventType kNetEventTypeFilter[] = {
   net::NetLog::TYPE_DISK_CACHE_ENTRY_IMPL,
   net::NetLog::TYPE_SPARSE_READ,
   net::NetLog::TYPE_SPARSE_WRITE,
   net::NetLog::TYPE_URL_REQUEST_START_JOB,
   net::NetLog::TYPE_HTTP_TRANSACTION_READ_RESPONSE_HEADERS,
 };
 
 MediaInternalsProxy::MediaInternalsProxy() {
-  io_thread_ = g_browser_process->io_thread();
-  registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
-                 content::NotificationService::AllBrowserContextsAndSources());
+  registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
+                 NotificationService::AllBrowserContextsAndSources());
 }
 
 void MediaInternalsProxy::Observe(int type,
-                                  const content::NotificationSource& source,
-                                  const content::NotificationDetails& details) {
+                                  const NotificationSource& source,
+                                  const NotificationDetails& details) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK_EQ(type, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED);
-  content::RenderProcessHost* process =
-      content::Source<content::RenderProcessHost>(source).ptr();
+  DCHECK_EQ(type, NOTIFICATION_RENDERER_PROCESS_TERMINATED);
+  RenderProcessHost* process = Source<RenderProcessHost>(source).ptr();
   CallJavaScriptFunctionOnUIThread("media.onRendererTerminated",
       base::Value::CreateIntegerValue(process->GetID()));
 }
 
 void MediaInternalsProxy::Attach(MediaInternalsMessageHandler* handler) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   handler_ = handler;
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&MediaInternalsProxy::ObserveMediaInternalsOnIOThread, this));
@@ skipping 61 matching lines @@
 
   DictionaryValue* constants = new DictionaryValue();
   constants->Set("eventTypes", net::NetLog::GetEventTypesAsValue());
   constants->Set("eventPhases", event_phases);
 
   return constants;
 }
 
 void MediaInternalsProxy::ObserveMediaInternalsOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  MediaInternals::GetInstance()->AddObserver(this);
-  io_thread_->net_log()->AddThreadSafeObserver(this,
-                                               net::NetLog::LOG_ALL_BUT_BYTES);
+  update_callback_ = base::Bind(&MediaInternalsProxy::OnUpdate,
+                                base::Unretained(this));
+  MediaInternals::GetInstance()->AddUpdateCallback(update_callback_);
+  if (GetContentClient()->browser()->GetNetLog()) {
+    net::NetLog* net_log = GetContentClient()->browser()->GetNetLog();
+    net_log->AddThreadSafeObserver(this, net::NetLog::LOG_ALL_BUT_BYTES);
+  }
 }
 
 void MediaInternalsProxy::StopObservingMediaInternalsOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  MediaInternals::GetInstance()->RemoveObserver(this);
-  io_thread_->net_log()->RemoveThreadSafeObserver(this);
+  MediaInternals::GetInstance()->RemoveUpdateCallback(update_callback_);
+  if (GetContentClient()->browser()->GetNetLog()) {
+    net::NetLog* net_log = GetContentClient()->browser()->GetNetLog();
+    net_log->RemoveThreadSafeObserver(this);
+  }
 }
 
 void MediaInternalsProxy::GetEverythingOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   MediaInternals::GetInstance()->SendEverything();
 }
 
 void MediaInternalsProxy::UpdateUIOnUIThread(const string16& update) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // Don't forward updates to a destructed UI.
@@ skipping 23 matching lines @@
   CallJavaScriptFunctionOnUIThread("media.onNetUpdate",
                                    pending_net_updates_.release());
 }
 
 void MediaInternalsProxy::CallJavaScriptFunctionOnUIThread(
     const std::string& function, Value* args) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   scoped_ptr<Value> args_value(args);
   std::vector<const Value*> args_vector;
   args_vector.push_back(args_value.get());
-  string16 update = content::WebUI::GetJavascriptCall(function, args_vector);
+  string16 update = WebUI::GetJavascriptCall(function, args_vector);
   UpdateUIOnUIThread(update);
 }
+
+}  // namespace content