Remove android webview rendering cruft

android_webview/browser/parent_compositor_draw_constraints.h

 // Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_PARENT_COMPOSITOR_DRAW_CONSTRAINTS_H_
 #define ANDROID_WEBVIEW_BROWSER_PARENT_COMPOSITOR_DRAW_CONSTRAINTS_H_
 
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/transform.h"
 
 namespace android_webview {
 
+class ChildFrame;
+
 struct ParentCompositorDrawConstraints {
   bool is_layer;
   gfx::Transform transform;
   gfx::Rect surface_rect;
 
   ParentCompositorDrawConstraints();
   ParentCompositorDrawConstraints(bool is_layer,
                                   const gfx::Transform& transform,
                                   const gfx::Rect& surface_rect);
-  bool Equals(const ParentCompositorDrawConstraints& other) const;
+  bool NeedUpdate(const ChildFrame& frame) const;
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_PARENT_COMPOSITOR_DRAW_CONSTRAINTS_H_