[Extensions] Remove the source_tab_id property on API request messages

extensions/renderer/request_sender.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/renderer/request_sender.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/timer/elapsed_timer.h"
 #include "base/values.h"
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension_messages.h"
-#include "extensions/renderer/extension_frame_helper.h"
 #include "extensions/renderer/script_context.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebScopedUserGesture.h"
 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 #include "third_party/WebKit/public/web/WebUserGestureToken.h"
 
 namespace extensions {
 
 // Contains info relevant to a pending API request.
@@ skipping 64 matching lines @@
 
   GURL source_url;
   if (blink::WebLocalFrame* webframe = context->web_frame())
     source_url = webframe->document().url();
 
   InsertRequest(request_id,
                 base::MakeUnique<PendingRequest>(
                     name, source,
                     blink::WebUserGestureIndicator::currentUserGestureToken()));
 
-  int tab_id = -1;
-  if (render_frame) {
-    ExtensionFrameHelper* frame_helper =
-        ExtensionFrameHelper::Get(render_frame);
-    DCHECK(frame_helper);
-    tab_id = frame_helper->tab_id();
-  }
-
   ExtensionHostMsg_Request_Params params;
   params.name = name;
   params.arguments.Swap(value_args);
   params.extension_id = context->GetExtensionID();
   params.source_url = source_url;
-  params.source_tab_id = tab_id;
   params.request_id = request_id;
   params.has_callback = has_callback;
   params.user_gesture =
       blink::WebUserGestureIndicator::isProcessingUserGesture();
 
   // Set Service Worker specific params to default values.
   params.worker_thread_id = -1;
   params.service_worker_version_id = kInvalidServiceWorkerVersionId;
 
   SendRequest(render_frame, for_io_thread, params);
@@ skipping 37 matching lines @@
   for (PendingRequestMap::iterator it = pending_requests_.begin();
        it != pending_requests_.end();) {
     if (it->second->source == source)
       pending_requests_.erase(it++);
     else
       ++it;
   }
 }
 
 }  // namespace extensions