Pinch/Zoom Infrastructure & Plumbing CL

cc/trees/layer_tree_host_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.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/synchronization/lock.h"
@@ skipping 374 matching lines @@
     settings->layer_transforms_should_scale_layer_contents = true;
   }
 
   virtual void SetupTree() OVERRIDE {
     root_layer_ = Layer::Create();
     root_layer_->SetBounds(gfx::Size(10, 20));
 
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, root_layer_->id());
+        paint_scrollbar, has_thumb, root_layer_.get());
     scrollbar_->SetPosition(gfx::Point(0, 10));
     scrollbar_->SetBounds(gfx::Size(10, 10));
 
     root_layer_->AddChild(scrollbar_);
 
     layer_tree_host()->SetRootLayer(root_layer_);
     LayerTreeHostTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
@@ skipping 721 matching lines @@
 
     if (layer_tree_host()->settings().impl_side_painting) {
       scoped_refptr<FakePictureLayer> layer =
           FakePictureLayer::Create(&client_);
       layer->set_always_update_resources(true);
       scroll_layer_ = layer;
     } else {
       scroll_layer_ = FakeContentLayer::Create(&client_);
     }
 
-    scroll_layer_->SetScrollable(true);
+    Layer* root_layer = layer_tree_host()->root_layer();
+    scroll_layer_->SetScrollClipLayer(root_layer);
+    scroll_layer_->SetIsContainerForFixedPositionLayers(true);
+    scroll_layer_->SetBounds(gfx::Size(2 * root_layer->bounds().width(),
+                                       2 * root_layer->bounds().height()));
     scroll_layer_->SetScrollOffset(gfx::Vector2d());
     layer_tree_host()->root_layer()->AddChild(scroll_layer_);
+    // This test requires the page_scale and inner viewport layers to be
+    // identified.
+    layer_tree_host()->RegisterViewportLayers(
+        root_layer, scroll_layer_.get(), NULL);
     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.5f, 2.f);
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   virtual void ApplyScrollAndScale(gfx::Vector2d scroll_delta,
                                    float scale) OVERRIDE {
     gfx::Vector2d offset = scroll_layer_->scroll_offset();
     scroll_layer_->SetScrollOffset(offset + scroll_delta);
     layer_tree_host()->SetPageScaleFactorAndLimits(scale, 0.5f, 2.f);
@@ skipping 288 matching lines @@
     settings->scrollbar_animator = LayerTreeSettings::NoAnimator;
   }
 
   virtual void SetupTree() OVERRIDE {
     layer_ = FakeContentLayer::Create(&client_);
     layer_->SetBounds(gfx::Size(10, 20));
 
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, layer_->id());
+        paint_scrollbar, has_thumb, layer_);
     scrollbar_->SetPosition(gfx::Point(0, 10));
     scrollbar_->SetBounds(gfx::Size(10, 10));
 
     layer_->AddChild(scrollbar_);
 
     layer_tree_host()->SetRootLayer(layer_);
     LayerTreeHostTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE {
@@ skipping 2194 matching lines @@
  protected:
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   virtual void SetupTree() OVERRIDE {
     root_ = Layer::Create();
     root_->SetBounds(gfx::Size(1, 1));
 
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_layer_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, root_->id());
+        paint_scrollbar, has_thumb, root_.get());
 
     root_->AddChild(scrollbar_layer_);
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeHostTest::SetupTree();
   }
 
   virtual void DidCommitAndDrawFrame() OVERRIDE {
     switch (layer_tree_host()->source_frame_number()) {
       case 0:
@@ skipping 1273 matching lines @@
 
     EndTest();
   }
 
   virtual void AfterTest() OVERRIDE {}
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostTestSimpleSwapPromiseMonitor);
 
 }  // namespace cc