cc: Allow 'overflow: hidden' layers to be scrolled again.

cc/trees/layer_tree_host_impl_unittest.cc

 // Copyright 2011 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 "cc/trees/layer_tree_host_impl.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 716 matching lines @@
       vertical_scrollbar.get());
 
   // Trying to scroll with a vertical scrollbar will succeed.
   EXPECT_TRUE(host_impl_->ScrollVerticallyByPage(
       gfx::Point(), SCROLL_FORWARD));
   EXPECT_FLOAT_EQ(875.f, host_impl_->RootScrollLayer()->ScrollDelta().y());
   EXPECT_TRUE(host_impl_->ScrollVerticallyByPage(
       gfx::Point(), SCROLL_BACKWARD));
 }
 
-TEST_F(LayerTreeHostImplTest, ScrollWithUserUnscrollableLayers) {
+// The user-scrollability breaks for zoomed-in pages. So disable this.
+// http://crbug.com/322223
+TEST_F(LayerTreeHostImplTest, DISABLED_ScrollWithUserUnscrollableLayers) {
   LayerImpl* scroll_layer = SetupScrollAndContentsLayers(gfx::Size(200, 200));
   host_impl_->SetViewportSize(gfx::Size(100, 100));
 
   gfx::Size overflow_size(400, 400);
   ASSERT_EQ(1u, scroll_layer->children().size());
   LayerImpl* overflow = scroll_layer->children()[0];
   overflow->SetBounds(overflow_size);
   overflow->SetContentBounds(overflow_size);
   overflow->SetScrollable(true);
   overflow->SetMaxScrollOffset(gfx::Vector2d(overflow_size.width(),
@@ skipping 4622 matching lines @@
   EXPECT_TRUE(host_impl_->SwapBuffers(frame));
 
   const ui::LatencyInfo& metadata_latency_after =
       fake_output_surface->last_sent_frame().metadata.latency_info;
   EXPECT_TRUE(metadata_latency_after.FindLatency(
       ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0, NULL));
 }
 
 }  // namespace
 }  // namespace cc