Add GetScrollOffset function to PPB_View

content/renderer/pepper/pepper_plugin_instance_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/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1186 matching lines @@
     new_clip = clip;
 
   cut_outs_rects_ = cut_outs_rects;
 
   view_data_.rect = PP_FromGfxRect(position);
   view_data_.clip_rect = PP_FromGfxRect(clip);
   view_data_.device_scale = container_->deviceScaleFactor();
   view_data_.css_scale =
       container_->pageZoomFactor() * container_->pageScaleFactor();
 
+  gfx::Size scroll_offset =
+      container_->element().document().frame()->scrollOffset();
+  view_data_.scroll_offset = PP_MakePoint(scroll_offset.width(),
+                                          scroll_offset.height());
+
   if (desired_fullscreen_state_ || view_data_.is_fullscreen) {
     WebElement element = container_->element();
     WebDocument document = element.document();
     bool is_fullscreen_element = (element == document.fullScreenElement());
     if (!view_data_.is_fullscreen && desired_fullscreen_state_ &&
         render_frame()->GetRenderWidget()->is_fullscreen() &&
         is_fullscreen_element) {
       // Entered fullscreen. Only possible via SetFullscreen().
       view_data_.is_fullscreen = true;
     } else if (view_data_.is_fullscreen && !is_fullscreen_element) {
@@ skipping 2016 matching lines @@
     // Running out-of-process. Initiate an IPC call to notify the plugin
     // process.
     ppapi::proxy::HostDispatcher* dispatcher =
         ppapi::proxy::HostDispatcher::GetForInstance(pp_instance());
     dispatcher->Send(new PpapiMsg_PPPInstance_HandleDocumentLoad(
         ppapi::API_ID_PPP_INSTANCE, pp_instance(), pending_host_id, data));
   }
 }
 
 }  // namespace content