Dispatch geolocation IPCs on the UI thread. Aside from simplifying the code to avoid a lot of threa…

content/public/browser/geolocation_permission_context.h

 // 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.
 
 #ifndef CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_
 #define CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
 
 class GURL;
 
 namespace content {
+class WebContents;
 
 // GeolocationPermissionContext must be implemented by the embedder, to provide
 // the policy and logic for the Geolocation permissions flow.
 // This includes both prompting the user and persisting results, as required.
 class CONTENT_EXPORT GeolocationPermissionContext
     : public base::RefCountedThreadSafe<GeolocationPermissionContext> {
  public:
   // The renderer is requesting permission to use Geolocation.
   // When the answer to a permission request has been determined, |callback|
   // should be called with the result.
   virtual void RequestGeolocationPermission(
-      int render_process_id,
-      int render_view_id,
+      WebContents* web_contents,
       int bridge_id,
       const GURL& requesting_frame,
       bool user_gesture,
       base::Callback<void(bool)> callback) = 0;
 
   // The renderer is cancelling a pending permission request.
   virtual void CancelGeolocationPermissionRequest(
-      int render_process_id,
-      int render_view_id,
+      WebContents* web_contents,
       int bridge_id,
       const GURL& requesting_frame) = 0;
 
  protected:
    virtual ~GeolocationPermissionContext() {}
 
  private:
   friend class base::RefCountedThreadSafe<GeolocationPermissionContext>;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_H_