Cleanup: Remove #ifdefs in extensions code that is disabled on mobile.

chrome/browser/extensions/api/web_request/web_request_api.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/extensions/api/web_request/web_request_api.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 397 matching lines @@
     return;
 
   scoped_ptr<base::ListValue> event_args(new base::ListValue);
   event_args->Append(event_argument.release());
 
   extensions::EventRouter* event_router = extensions::EventRouter::Get(profile);
 
   extensions::EventFilteringInfo event_filtering_info;
 
   std::string event_name;
-#if defined(ENABLE_EXTENSIONS)
   // The instance ID uniquely identifies a <webview> instance within an embedder
   // process. We use a filter here so that only event listeners for a particular
   // <webview> will fire.
   if (is_web_view_guest) {
     event_filtering_info.SetInstanceID(web_view_info.instance_id);
     event_name = webview::kEventMessage;
   } else {
     event_name = declarative_keys::kOnMessage;
   }
-#else
-  // TODO(thestig) Remove this once the WebRequestAPI code is disabled.
-  // http://crbug.com/305852
-  NOTREACHED();
-#endif
 
   scoped_ptr<extensions::Event> event(new extensions::Event(
       event_name,
       event_args.Pass(), profile, GURL(),
       extensions::EventRouter::USER_GESTURE_UNKNOWN,
       event_filtering_info));
   event_router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 void RemoveEventListenerOnIOThread(
@@ skipping 2033 matching lines @@
   extensions::RuntimeData* runtime_data =
       extensions::ExtensionSystem::Get(profile)->runtime_data();
   for (extensions::ExtensionSet::const_iterator it = extensions.begin();
        !webrequest_used && it != extensions.end();
        ++it) {
     webrequest_used |= runtime_data->HasUsedWebRequest(it->get());
   }
 
   host->Send(new ExtensionMsg_UsingWebRequestAPI(webrequest_used));
 }