[Web Intents] Display throbber when loading inline disposition.

chrome/browser/ui/cocoa/web_intent_picker_cocoa.mm

 // 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/cocoa/web_intent_picker_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/bind.h"
 #include "base/message_loop.h"
@@ skipping 144 matching lines @@
   // We don't handle individual icon changes - just redo the whole model.
   PerformLayout();
 }
 
 void WebIntentPickerCocoa::OnInlineDisposition(WebIntentPickerModel* model,
                                                const GURL& url) {
   DCHECK(browser_);
   content::WebContents* web_contents = content::WebContents::Create(
       browser_->profile(), NULL, MSG_ROUTING_NONE, NULL, NULL);
   inline_disposition_tab_contents_.reset(new TabContentsWrapper(web_contents));
-  inline_disposition_delegate_.reset(new WebIntentInlineDispositionDelegate);
+  inline_disposition_delegate_.reset(
+      new WebIntentInlineDispositionDelegate(this));
   web_contents->SetDelegate(inline_disposition_delegate_.get());
 
   // Must call this immediately after WebContents creation to avoid race
   // with load.
   delegate_->OnInlineDispositionWebContentsCreated(web_contents);
 
   inline_disposition_tab_contents_->web_contents()->GetController().LoadURL(
       url,
       content::Referrer(),
       content::PAGE_TRANSITION_START_PAGE,
@@ skipping 25 matching lines @@
     const std::string& extension_id) {
   delegate_->OnExtensionInstallRequested(extension_id);
 }
 
 void WebIntentPickerCocoa::OnExtensionInstallSuccess(const std::string& id) {
 }
 
 void WebIntentPickerCocoa::OnExtensionInstallFailure(const std::string& id) {
   // TODO(groby): What to do on failure? (See also binji for views/gtk)
 }