Fix clip/transform pairing to follow LIFO order.

ui/compositor/clip_transform_recorder.cc

 // Copyright 2015 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 "ui/compositor/clip_transform_recorder.h"
 
 #include "base/logging.h"
 #include "cc/playback/clip_display_item.h"
 #include "cc/playback/clip_path_display_item.h"
 #include "cc/playback/display_item_list.h"
 #include "cc/playback/transform_display_item.h"
 #include "ui/compositor/paint_context.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/path.h"
 
 namespace ui {
 
 ClipTransformRecorder::ClipTransformRecorder(const PaintContext& context)
     : context_(context), num_closers_(0) {
 }
 
 ClipTransformRecorder::~ClipTransformRecorder() {
-  for (size_t i = 0; i < num_closers_; ++i) {
-    switch (closers_[i]) {
+  for (size_t i = num_closers_; i > 0; --i) {
+    switch (closers_[i - 1]) {
       case CLIP_RECT:
         context_.list_->CreateAndAppendItem<cc::EndClipDisplayItem>();
         break;
       case CLIP_PATH:
         context_.list_->CreateAndAppendItem<cc::EndClipPathDisplayItem>();
         break;
       case TRANSFORM:
         context_.list_->CreateAndAppendItem<cc::EndTransformDisplayItem>();
         break;
     }
@@ skipping 25 matching lines @@
 }
 
 void ClipTransformRecorder::Transform(const gfx::Transform& transform) {
   auto* item = context_.list_->CreateAndAppendItem<cc::TransformDisplayItem>();
   item->SetNew(transform);
   DCHECK_LT(num_closers_, arraysize(closers_));
   closers_[num_closers_++] = TRANSFORM;
 }
 
 }  // namespace ui