[Extensions] Remove the Infobar API

extensions/browser/extension_host.cc

 // Copyright 2014 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 "extensions/browser/extension_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 112 matching lines @@
       browser_context_(site_instance->GetBrowserContext()),
       render_view_host_(NULL),
       did_stop_loading_(false),
       document_element_available_(false),
       initial_url_(url),
       extension_function_dispatcher_(browser_context_, this),
       extension_host_type_(host_type) {
   // Not used for panels, see PanelHost.
   DCHECK(host_type == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE ||
          host_type == VIEW_TYPE_EXTENSION_DIALOG ||
-         host_type == VIEW_TYPE_EXTENSION_INFOBAR ||
          host_type == VIEW_TYPE_EXTENSION_POPUP);
   host_contents_.reset(WebContents::Create(
       WebContents::CreateParams(browser_context_, site_instance))),
   content::WebContentsObserver::Observe(host_contents_.get());
   host_contents_->SetDelegate(this);
   SetViewType(host_contents_.get(), host_type);
 
   render_view_host_ = host_contents_->GetRenderViewHost();
 
   // Listen for when an extension is unloaded from the same profile, as it may
@@ skipping 195 matching lines @@
   DCHECK(extension_host_type_ == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE);
   // Nothing to do for background pages.
 }
 
 void ExtensionHost::DocumentAvailableInMainFrame() {
   // If the document has already been marked as available for this host, then
   // bail. No need for the redundant setup. http://crbug.com/31170
   if (document_element_available_)
     return;
   document_element_available_ = true;
-  OnDocumentAvailable();
-}
 
-void ExtensionHost::OnDocumentAvailable() {
-  DCHECK(extension_host_type_ == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE);
-  ExtensionSystem::Get(browser_context_)
-      ->runtime_data()
-      ->SetBackgroundPageReady(extension_->id(), true);
-  content::NotificationService::current()->Notify(
-      extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
-      content::Source<const Extension>(extension_),
-      content::NotificationService::NoDetails());
+  if (extension_host_type_ == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
+    ExtensionSystem::Get(browser_context_)
+        ->runtime_data()
+        ->SetBackgroundPageReady(extension_->id(), true);
+    content::NotificationService::current()->Notify(
+        extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
+        content::Source<const Extension>(extension_),
+        content::NotificationService::NoDetails());
+  }
 }
 
 void ExtensionHost::CloseContents(WebContents* contents) {
   Close();
 }
 
 bool ExtensionHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ExtensionHost, message)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
@@ skipping 116 matching lines @@
   return delegate_->CheckMediaAccessPermission(
       web_contents, security_origin, type, extension());
 }
 
 bool ExtensionHost::IsNeverVisible(content::WebContents* web_contents) {
   ViewType view_type = extensions::GetViewType(web_contents);
   return view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
 }
 
 }  // namespace extensions