Add Vector2d classes that represent offsets, instead of using Point.

content/browser/renderer_host/render_view_host_impl.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 "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1440 matching lines @@
   // shouldn't process input events.
   GetProcess()->SetIgnoreInputEvents(true);
   StopHangMonitorTimeout();
   delegate_->RunBeforeUnloadConfirm(this, message, is_reload, reply_msg);
 }
 
 void RenderViewHostImpl::OnMsgStartDragging(
     const WebDropData& drop_data,
     WebDragOperationsMask drag_operations_mask,
     const SkBitmap& bitmap,
-    const gfx::Point& bitmap_offset_in_dip) {
+    const gfx::Vector2d& bitmap_offset_in_dip) {
   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
   if (!view)
     return;
 
   WebDropData filtered_data(drop_data);
   RenderProcessHost* process = GetProcess();
   ChildProcessSecurityPolicyImpl* policy =
       ChildProcessSecurityPolicyImpl::GetInstance();
 
   // Allow drag of Javascript URLs to enable bookmarklet drag to bookmark bar.
@@ skipping 557 matching lines @@
   is_waiting_for_beforeunload_ack_ = false;
   is_waiting_for_unload_ack_ = false;
   has_timed_out_on_unload_ = false;
 }
 
 void RenderViewHostImpl::ClearPowerSaveBlockers() {
   STLDeleteValues(&power_save_blockers_);
 }
 
 }  // namespace content