Make most code on mac compile with enable_web_intents=0

chrome/browser/ui/browser_tab_contents.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/browser_tab_contents.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/api/infobars/infobar_service.h"
 #include "chrome/browser/autofill/autofill_external_delegate.h"
 #include "chrome/browser/autofill/autofill_manager.h"
@@ skipping 135 matching lines @@
   safe_browsing::SafeBrowsingTabObserver::CreateForWebContents(web_contents);
   SearchEngineTabHelper::CreateForWebContents(web_contents);
   chrome::search::SearchTabHelper::CreateForWebContents(web_contents);
   SnapshotTabHelper::CreateForWebContents(web_contents);
   SSLTabHelper::CreateForWebContents(web_contents);
   TabContentsSyncedTabDelegate::CreateForWebContents(web_contents);
   TabSpecificContentSettings::CreateForWebContents(web_contents);
   ThreeDAPIObserver::CreateForWebContents(web_contents);
   ThumbnailTabHelper::CreateForWebContents(web_contents);
   TranslateTabHelper::CreateForWebContents(web_contents);
+#if defined(ENABLE_WEB_INTENTS)
   WebIntentPickerController::CreateForWebContents(web_contents);
+#endif
   ZoomController::CreateForWebContents(web_contents);
 
 #if defined(ENABLE_AUTOMATION)
   AutomationTabHelper::CreateForWebContents(web_contents);
 #endif
 
 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
   captive_portal::CaptivePortalTabHelper::CreateForWebContents(web_contents);
 #endif
 
@@ skipping 11 matching lines @@
   if (OneClickSigninHelper::CanOffer(
           web_contents, OneClickSigninHelper::CAN_OFFER_FOR_ALL, "", NULL)) {
     OneClickSigninHelper::CreateForWebContents(web_contents);
   }
 #endif
 
 #if defined(OS_WIN)
   MetroPinTabHelper::CreateForWebContents(web_contents);
 #endif
 }