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

content/browser/web_contents/web_contents_view_win.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/web_contents/web_contents_view_win.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
@@ skipping 245 matching lines @@
                                        const std::vector<WebMenuItem>& items,
                                        bool right_aligned,
                                        bool allow_multiple_selection) {
   // External popup menus are only used on Mac and Android.
   NOTIMPLEMENTED();
 }
 
 void WebContentsViewWin::StartDragging(const WebDropData& drop_data,
                                        WebKit::WebDragOperationsMask operations,
                                        const gfx::ImageSkia& image,
-                                       const gfx::Point& image_offset) {
+                                       const gfx::Vector2d& image_offset) {
   drag_handler_ = new WebContentsDragWin(
       GetNativeView(),
       web_contents_,
       drag_dest_,
       base::Bind(&WebContentsViewWin::EndDragging, base::Unretained(this)));
   drag_handler_->StartDragging(drop_data, operations, image, image_offset);
 }
 
 void WebContentsViewWin::UpdateDragCursor(WebKit::WebDragOperation operation) {
   drag_dest_->set_drag_cursor(operation);
@@ skipping 194 matching lines @@
   si.nPage = 10;
   si.nPos = 50;
 
   ::SetScrollInfo(hwnd(), SB_HORZ, &si, FALSE);
   ::SetScrollInfo(hwnd(), SB_VERT, &si, FALSE);
 
   return 1;
 }
 
 }  // namespace content