Support plumbing LatencyInfo through the old software path.

content/port/browser/render_widget_host_view_port.h

 // 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.
 
 #ifndef CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_
 #define CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_
 
 #include "base/callback.h"
 #include "base/process_util.h"
 #include "base/string16.h"
@@ skipping 113 matching lines @@
   // drag-resizing can starve painting; this function thus provides the view its
   // main chance to ensure it stays painted and not just invalidated.  On the
   // other hand, if this always blindly paints, then if we're already in the
   // midst of a paint on the callstack, we can double-paint unnecessarily.
   // (Worse, we might recursively call RenderWidgetHost::GetBackingStore().)
   // Thus implementers should generally paint as much of |rect| as possible
   // synchronously with as little overpainting as possible.
   virtual void DidUpdateBackingStore(
       const gfx::Rect& scroll_rect,
       const gfx::Vector2d& scroll_delta,
-      const std::vector<gfx::Rect>& copy_rects) = 0;
+      const std::vector<gfx::Rect>& copy_rects,
+      const ui::LatencyInfo& latency_info) = 0;
 
   // Notifies the View that the renderer has ceased to exist.
   virtual void RenderViewGone(base::TerminationStatus status,
                               int error_code) = 0;
 
   // Tells the View to destroy itself.
   virtual void Destroy() = 0;
 
   // Tells the View that the tooltip text for the current mouse position over
   // the page has changed.
@@ skipping 172 matching lines @@
 
 #if defined(OS_WIN) && defined(USE_AURA)
   virtual void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_