Add GetScrollOffset function to PPB_View

ppapi/shared_impl/ppb_view_shared.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 "ppapi/shared_impl/ppb_view_shared.h"
 
 namespace {
 
 bool IsRectNonempty(const PP_Rect& rect) {
   return rect.size.width > 0 && rect.size.height > 0;
@@ skipping 17 matching lines @@
   return rect.point.x == other.rect.point.x &&
          rect.point.y == other.rect.point.y &&
          rect.size.width == other.rect.size.width &&
          rect.size.height == other.rect.size.height &&
          is_fullscreen == other.is_fullscreen &&
          is_page_visible == other.is_page_visible &&
          clip_rect.point.x == other.clip_rect.point.x &&
          clip_rect.point.y == other.clip_rect.point.y &&
          clip_rect.size.width == other.clip_rect.size.width &&
          clip_rect.size.height == other.clip_rect.size.height &&
-         device_scale == other.device_scale && css_scale == other.css_scale;
+         device_scale == other.device_scale && css_scale == other.css_scale &&
+         scroll_offset.x == other.scroll_offset.x &&
+         scroll_offset.y == other.scroll_offset.y;
 }
 
 PPB_View_Shared::PPB_View_Shared(ResourceObjectType type,
                                  PP_Instance instance,
                                  const ViewData& data)
     : Resource(type, instance), data_(data) {}
 
 PPB_View_Shared::~PPB_View_Shared() {}
 
 thunk::PPB_View_API* PPB_View_Shared::AsPPB_View_API() { return this; }
@@ skipping 23 matching lines @@
   if (!clip)
     return PP_FALSE;
   *clip = data_.clip_rect;
   return PP_TRUE;
 }
 
 float PPB_View_Shared::GetDeviceScale() const { return data_.device_scale; }
 
 float PPB_View_Shared::GetCSSScale() const { return data_.css_scale; }
 
+PP_Bool PPB_View_Shared::GetScrollOffset(PP_Point* scroll_offset) const {
+  if (!scroll_offset)
+    return PP_FALSE;
+  *scroll_offset = data_.scroll_offset;
+  return PP_TRUE;
+}
+
 }  // namespace ppapi