Switch BackgroundContents to use TabContents instead of RenderViewHost.

chrome/browser/tab_contents/background_contents.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/tab_contents/background_contents.h"
 
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_factory.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/common/chrome_view_types.h"
 #include "content/browser/browsing_instance.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/site_instance.h"
+#include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/notification_service.h"
 #include "content/common/view_messages.h"
 #include "ui/gfx/rect.h"
 
 ////////////////
 // BackgroundContents
 
 BackgroundContents::BackgroundContents(SiteInstance* site_instance,
                                        int routing_id,
                                        Delegate* delegate)
     : delegate_(delegate) {
-  Profile* profile = Profile::FromBrowserContext(
+  profile_ = Profile::FromBrowserContext(
       site_instance->browsing_instance()->browser_context());
 
   // TODO(rafaelw): Implement correct session storage.
-  render_view_host_ = new RenderViewHost(site_instance, this, routing_id, NULL);
+  tab_contents_.reset(new TabContents(
+      profile_, site_instance, routing_id, NULL, NULL));
+  tab_contents_->set_view_type(chrome::VIEW_TYPE_BACKGROUND_CONTENTS);
+  tab_contents_->set_delegate(this);
+  TabContentsObserver::Observe(tab_contents_.get());
 
   // Close ourselves when the application is shutting down.
   registrar_.Add(this, content::NOTIFICATION_APP_TERMINATING,
                  content::NotificationService::AllSources());
 
   // Register for our parent profile to shutdown, so we can shut ourselves down
   // as well (should only be called for OTR profiles, as we should receive
   // APP_TERMINATING before non-OTR profiles are destroyed).
   registrar_.Add(this, chrome::NOTIFICATION_PROFILE_DESTROYED,
-                 content::Source<Profile>(profile));
+                 content::Source<Profile>(profile_));
 }
 
 // Exposed to allow creating mocks.
 BackgroundContents::BackgroundContents()
     : delegate_(NULL),
-      render_view_host_(NULL) {
+      profile_(NULL) {
 }
 
 BackgroundContents::~BackgroundContents() {
-  if (!render_view_host_)   // Will be null for unit tests.
+  if (!tab_contents_.get())   // Will be null for unit tests.
     return;
-  Profile* profile = Profile::FromBrowserContext(
-      render_view_host_->process()->browser_context());
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BACKGROUND_CONTENTS_DELETED,
-      content::Source<Profile>(profile),
+      content::Source<Profile>(profile_),
       content::Details<BackgroundContents>(this));
-  render_view_host_->Shutdown();  // deletes render_view_host
-}
-
-BackgroundContents* BackgroundContents::GetAsBackgroundContents() {
-  return this;
-}
-
-RenderViewHostDelegate::View* BackgroundContents::GetViewDelegate() {
-  return this;
 }
 
 const GURL& BackgroundContents::GetURL() const {
-  return url_;
+  return tab_contents_.get() ? tab_contents_->GetURL() : GURL::EmptyGURL();
 }
 
-content::ViewType BackgroundContents::GetRenderViewType() const {
-  return chrome::VIEW_TYPE_BACKGROUND_CONTENTS;
+void BackgroundContents::CloseContents(TabContents* source) {
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_BACKGROUND_CONTENTS_CLOSED,
+      content::Source<Profile>(profile_),
+      content::Details<BackgroundContents>(this));
+  delete this;
 }
 
-void BackgroundContents::DidNavigate(
-    RenderViewHost* render_view_host,
-    const ViewHostMsg_FrameNavigate_Params& params) {
-  // We only care when the outer frame changes.
-  if (!content::PageTransitionIsMainFrame(params.transition))
-    return;
+bool BackgroundContents::ShouldSuppressDialogs() {
+  return true;
+}
 
+void BackgroundContents::DidNavigateMainFramePostCommit(TabContents* tab) {
   // Note: because BackgroundContents are only available to extension apps,
   // navigation is limited to urls within the app's extent. This is enforced in
-  // RenderView::decidePolicyForNaviation. If BackgroundContents become
+  // RenderView::decidePolicyForNavigation. If BackgroundContents become
   // available as a part of the web platform, it probably makes sense to have
   // some way to scope navigation of a background page to its opener's security
   // origin. Note: if the first navigation is to a URL outside the app's
   // extent a background page will be opened but will remain at about:blank.
-  url_ = params.url;
-
-  Profile* profile = Profile::FromBrowserContext(
-      render_view_host->process()->browser_context());
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
-      content::Source<Profile>(profile),
+      content::Source<Profile>(profile_),
       content::Details<BackgroundContents>(this));
 }
 
-void BackgroundContents::RunJavaScriptMessage(
-    const RenderViewHost* rvh,
-    const string16& message,
-    const string16& default_prompt,
-    const GURL& frame_url,
-    const int flags,
-    IPC::Message* reply_msg,
-    bool* did_suppress_message) {
-  // TODO(rafaelw): Implement.
+void BackgroundContents::RenderViewGone() {
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_BACKGROUND_CONTENTS_TERMINATED,
+      content::Source<Profile>(profile_),
+      content::Details<BackgroundContents>(this));
 
-  // Since we are suppressing messages, just reply as if the user immediately
-  // pressed "Cancel".
-  OnDialogClosed(reply_msg, false, string16());
-
-  *did_suppress_message = true;
+  // Our RenderView went away, so we should go away also, so killing the process
+  // via the TaskManager doesn't permanently leave a BackgroundContents hanging
+  // around the system, blocking future instances from being created
+  // (http://crbug.com/65189).
+  delete this;
 }
 
 void BackgroundContents::Observe(int type,
                                  const content::NotificationSource& source,
                                  const content::NotificationDetails& details) {
   // TODO(rafaelw): Implement pagegroup ref-counting so that non-persistent
   // background pages are closed when the last referencing frame is closed.
   switch (type) {
     case chrome::NOTIFICATION_PROFILE_DESTROYED:
     case content::NOTIFICATION_APP_TERMINATING: {
       delete this;
       break;
     }
     default:
       NOTREACHED() << "Unexpected notification sent.";
       break;
   }
 }
-
-void BackgroundContents::OnDialogClosed(IPC::Message* reply_msg,
-                                        bool success,
-                                        const string16& user_input) {
-  render_view_host()->JavaScriptDialogClosed(reply_msg,
-                                             success,
-                                             user_input);
-}
-
-gfx::NativeWindow BackgroundContents::GetDialogRootWindow() {
-  NOTIMPLEMENTED();
-  return NULL;
-}
-
-void BackgroundContents::Close(RenderViewHost* render_view_host) {
-  Profile* profile = Profile::FromBrowserContext(
-      render_view_host->process()->browser_context());
-  content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_BACKGROUND_CONTENTS_CLOSED,
-      content::Source<Profile>(profile),
-      content::Details<BackgroundContents>(this));
-  delete this;
-}
-
-void BackgroundContents::RenderViewGone(RenderViewHost* rvh,
-                                        base::TerminationStatus status,
-                                        int error_code) {
-  Profile* profile =
-      Profile::FromBrowserContext(rvh->process()->browser_context());
-  content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_BACKGROUND_CONTENTS_TERMINATED,
-      content::Source<Profile>(profile),
-      content::Details<BackgroundContents>(this));
-
-  // Our RenderView went away, so we should go away also, so killing the process
-  // via the TaskManager doesn't permanently leave a BackgroundContents hanging
-  // around the system, blocking future instances from being created
-  // (http://crbug.com/65189).
-  delete this;
-}
-
-content::RendererPreferences BackgroundContents::GetRendererPrefs(
-    content::BrowserContext* browser_context) const {
-  Profile* profile = Profile::FromBrowserContext(browser_context);
-  content::RendererPreferences preferences;
-  renderer_preferences_util::UpdateFromSystemSettings(&preferences, profile);
-  return preferences;
-}
-
-WebPreferences BackgroundContents::GetWebkitPrefs() {
-  WebPreferences prefs =
-      RenderViewHostDelegateHelper::GetWebkitPrefs(render_view_host_);
-
-  // Disable all kinds of acceleration for background pages.
-  // See http://crbug.com/96005 and http://crbug.com/96006
-  prefs.force_compositing_mode = false;
-  prefs.accelerated_compositing_enabled = false;
-  prefs.accelerated_2d_canvas_enabled = false;
-  prefs.accelerated_video_enabled = false;
-  prefs.accelerated_drawing_enabled = false;
-  prefs.accelerated_plugins_enabled = false;
-
-  return prefs;
-}
-
-void BackgroundContents::CreateNewWindow(
-    int route_id,
-    const ViewHostMsg_CreateWindow_Params& params) {
-  Profile* profile = Profile::FromBrowserContext(
-      render_view_host_->process()->browser_context());
-  delegate_view_helper_.CreateNewWindow(
-      route_id,
-      profile,
-      render_view_host_->site_instance(),
-      ChromeWebUIFactory::GetInstance()->GetWebUIType(profile, url_),
-      this,
-      params.window_container_type,
-      params.frame_name);
-}
-
-void BackgroundContents::CreateNewWidget(int route_id,
-                                         WebKit::WebPopupType popup_type) {
-  NOTREACHED();
-}
-
-void BackgroundContents::CreateNewFullscreenWidget(int route_id) {
-  NOTREACHED();
-}
-
-void BackgroundContents::ShowCreatedWindow(int route_id,
-                                           WindowOpenDisposition disposition,
-                                           const gfx::Rect& initial_pos,
-                                           bool user_gesture) {
-  TabContents* contents = delegate_view_helper_.GetCreatedWindow(route_id);
-  if (contents)
-    delegate_->AddTabContents(contents, disposition, initial_pos, user_gesture);
-}
-
-void BackgroundContents::ShowCreatedWidget(int route_id,
-                                           const gfx::Rect& initial_pos) {
-  NOTIMPLEMENTED();
-}
-
-void BackgroundContents::ShowCreatedFullscreenWidget(int route_id) {
-  NOTIMPLEMENTED();
-}
-
-// static
-BackgroundContents*
-BackgroundContents::GetBackgroundContentsByID(int render_process_id,
-                                              int render_view_id) {
-  RenderViewHost* render_view_host =
-      RenderViewHost::FromID(render_process_id, render_view_id);
-  if (!render_view_host)
-    return NULL;
-
-  return render_view_host->delegate()->GetAsBackgroundContents();
-}