Plumb smooth scrolling in Chromium compositor

content/renderer/render_view_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/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 1323 matching lines @@
   while ((observer = it.GetNext()) != NULL)
     if (observer->OnMessageReceived(message))
       return true;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(RenderViewImpl, message)
     IPC_MESSAGE_HANDLER(InputMsg_ExecuteEditCommand, OnExecuteEditCommand)
     IPC_MESSAGE_HANDLER(InputMsg_MoveCaret, OnMoveCaret)
     IPC_MESSAGE_HANDLER(InputMsg_ScrollFocusedEditableNodeIntoRect,
                         OnScrollFocusedEditableNodeIntoRect)
+    IPC_MESSAGE_HANDLER(InputMsg_SmoothScroll, OnSmoothScroll)
     IPC_MESSAGE_HANDLER(InputMsg_SetEditCommandsForNextKeyEvent,
                         OnSetEditCommandsForNextKeyEvent)
     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
     IPC_MESSAGE_HANDLER(ViewMsg_SaveImageAt, OnSaveImageAt)
     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageScale, OnResetPageScale)
     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
                         OnSetZoomLevelForLoadingURL)
@@ skipping 130 matching lines @@
   if (!element.isNull() && IsEditableNode(element)) {
     rect_for_scrolled_focused_editable_node_ = rect;
     has_scrolled_focused_editable_node_into_rect_ = true;
     will_animate = webview()->scrollFocusedNodeIntoRect(rect);
   }
 
   if (!will_animate)
     FocusChangeComplete();
 }
 
+void RenderViewImpl::OnSmoothScroll(int target_x,
+                                    int target_y,
+                                    long duration_ms) {
+  if (!webview())
+    return;
+  webview()->smoothScroll(target_x, target_y, duration_ms);
+}
+
 void RenderViewImpl::OnSetEditCommandsForNextKeyEvent(
     const EditCommands& edit_commands) {
   edit_commands_ = edit_commands;
 }
 
 void RenderViewImpl::OnSetHistoryOffsetAndLength(int history_offset,
                                                  int history_length) {
   DCHECK_GE(history_offset, -1);
   DCHECK_GE(history_length, 0);
 
@@ skipping 2320 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content