cc: Use impl-side painting in LTH context lost tests.

cc/trees/layer_tree_host_unittest_context.cc

 // Copyright 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.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "base/basictypes.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/heads_up_display_layer.h"
 #include "cc/layers/io_surface_layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/painted_scrollbar_layer.h"
 #include "cc/layers/picture_layer.h"
 #include "cc/layers/texture_layer.h"
 #include "cc/layers/texture_layer_impl.h"
 #include "cc/layers/video_layer.h"
 #include "cc/layers/video_layer_impl.h"
 #include "cc/output/filter_operations.h"
 #include "cc/test/fake_content_layer.h"
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/fake_content_layer_impl.h"
 #include "cc/test/fake_delegated_renderer_layer.h"
 #include "cc/test/fake_delegated_renderer_layer_impl.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_painted_scrollbar_layer.h"
+#include "cc/test/fake_picture_layer.h"
+#include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/fake_scoped_ui_resource.h"
 #include "cc/test/fake_scrollbar.h"
 #include "cc/test/fake_video_frame_provider.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/test/render_pass_test_common.h"
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/layer_tree_impl.h"
@@ skipping 267 matching lines @@
 
   virtual void DidInitializeOutputSurface() OVERRIDE { EXPECT_TRUE(false); }
 
   virtual void AfterTest() OVERRIDE {
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostClientNotReadyDoesNotCreateOutputSurface);
 
-class LayerTreeHostContextTestLostContextSucceedsWithContent
+class LayerTreeHostContextTestLostContextSucceedsWithContentAndImpl

[danakj, 2014/08/26 18:54:41]

leave the test name

[sohanjg, 2014/08/27 06:59:50]

Done.

     : public LayerTreeHostContextTestLostContextSucceeds {
  public:
   virtual void SetupTree() OVERRIDE {
     root_ = Layer::Create();
     root_->SetBounds(gfx::Size(10, 10));
     root_->SetIsDrawable(true);
 
-    content_ = FakeContentLayer::Create(&client_);
-    content_->SetBounds(gfx::Size(10, 10));
-    content_->SetIsDrawable(true);
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer_ = PictureLayer::Create(&client_);

[danakj, 2014/08/26 18:54:41]

FakePictureLayer

[sohanjg, 2014/08/27 06:59:50]

Done.

+    else
+      layer_ = ContentLayer::Create(&client_);

[danakj, 2014/08/26 18:54:41]

You mean FakeContentLayer

[sohanjg, 2014/08/27 06:59:49]

Done.

+    layer_->SetBounds(gfx::Size(10, 10));
+    layer_->SetIsDrawable(true);
 
-    root_->AddChild(content_);
+    root_->AddChild(layer_);
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void InvalidateAndSetNeedsCommit() OVERRIDE {
     // Invalidate the render surface so we don't try to use a cached copy of the
     // surface.  We want to make sure to test the drawing paths for drawing to
     // a child surface.
-    content_->SetNeedsDisplay();
+    layer_->SetNeedsDisplay();
     LayerTreeHostContextTestLostContextSucceeds::InvalidateAndSetNeedsCommit();
   }
 
   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
-    FakeContentLayerImpl* content_impl = static_cast<FakeContentLayerImpl*>(
-        host_impl->active_tree()->root_layer()->children()[0]);
-    // Even though the context was lost, we should have a resource. The
-    // TestWebGraphicsContext3D ensures that this resource is created with
-    // the active context.
-    EXPECT_TRUE(content_impl->HaveResourceForTileAt(0, 0));
+    if (layer_tree_host()->settings().impl_side_painting) {
+      FakePictureLayerImpl* picture_impl = static_cast<FakePictureLayerImpl*>(
+          host_impl->active_tree()->root_layer()->children()[0]);
+      // Even though the context was lost, we should have valid tile
+      // priorities.
+      EXPECT_TRUE(picture_impl->HasValidTilePriorities());

[sohanjg, 2014/08/26 09:36:47]

hope this is the closest to having resource for tile in impl side world?

[danakj, 2014/08/26 18:54:40]

picture_impl->HighResTiling()->TileAt(0, 0)->HasResources() ?

[sohanjg, 2014/08/27 06:59:50]

yea! but i think for impl-side paint, can we be sure that the layer will have
resource? tests fails here, so have removed them.

[danakj, 2014/08/27 12:59:26]

It should not activate and draw without a resource. What is failing?

[sohanjg, 2014/08/27 13:33:01]

Hmm.
picture_impl->HighResTiling()->TileAt(0, 0)->HasResources(), returns FALSE for
multi thread direct and delegating renderer impl test

[danakj, 2014/08/27 13:49:32]

That sounds wrong, does it do this every time it draws or just after lost
context or what? Can you figure out why it's doing that? Seems like a bug.

[sohanjg, 2014/08/27 14:13:34]

DrawLayersOnThread is always having no resource, irrespective of lost context, i
will check it more.

[sohanjg, 2014/09/01 10:51:28]

Sorry for the late response.
For tests we use solid color mode resources which are released when we complete
raster tasks,

https://code.google.com/p/chromium/codesearch#chromium/src/cc/resources/tile_...

hence we get tile w/o resource in DrawLayersOnThread here with impl-side paint.
Should we skip the resource check, and add a solid color mode check ?

[danakj, 2014/09/03 19:51:40]

Oh, maybe we need to make the client_ draw something other than a solid color
then, to make us have an actual resource we can look for.

But alternatively, instead of checking TileAt(0, 0)->HasResource() could you
check TileAt(0, 0)->IsReadyToDraw()?

+    } else {
+      FakeContentLayerImpl* content_impl = static_cast<FakeContentLayerImpl*>(
+          host_impl->active_tree()->root_layer()->children()[0]);
+      // Even though the context was lost, we should have a resource. The
+      // TestWebGraphicsContext3D ensures that this resource is created with
+      // the active context.
+      EXPECT_TRUE(content_impl->HaveResourceForTileAt(0, 0));
+    }
   }
 
  protected:
   FakeContentLayerClient client_;
   scoped_refptr<Layer> root_;
-  scoped_refptr<ContentLayer> content_;
+  scoped_refptr<Layer> layer_;
 };
 
-// This test uses TiledLayer to check for a working context.
-SINGLE_AND_MULTI_THREAD_NOIMPL_TEST_F(
-    LayerTreeHostContextTestLostContextSucceedsWithContent);
+// This test uses TiledLayer and PictureLayer to check for a working context.
+SINGLE_AND_MULTI_THREAD_TEST_F(
+    LayerTreeHostContextTestLostContextSucceedsWithContentAndImpl);
 
 class LayerTreeHostContextTestCreateOutputSurfaceFails
     : public LayerTreeHostContextTest {
  public:
   // Run a test that initially fails OutputSurface creation |times_to_fail|
   // times. If |expect_fallback_attempt| is |true|, an attempt to create a
   // fallback/software OutputSurface is expected to occur.
   LayerTreeHostContextTestCreateOutputSurfaceFails(int times_to_fail,
                                                    bool expect_fallback_attempt)
       : times_to_fail_(times_to_fail),
@@ skipping 58 matching lines @@
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostContextTestCreateOutputSurfaceFailsWithFallback);
 
 class LayerTreeHostContextTestLostContextAndEvictTextures
     : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestLostContextAndEvictTextures()
       : LayerTreeHostContextTest(),
-        layer_(FakeContentLayer::Create(&client_)),
         impl_host_(0),
         num_commits_(0) {}
 
   virtual void SetupTree() OVERRIDE {
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer_ = PictureLayer::Create(&client_);

[danakj, 2014/08/26 18:54:40]

FakePictureLayer

[sohanjg, 2014/08/27 06:59:49]

Done.

+    else
+      layer_ = FakeContentLayer::Create(&client_);
     layer_->SetBounds(gfx::Size(10, 20));
     layer_tree_host()->SetRootLayer(layer_);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   void PostEvictTextures() {
     if (HasImplThread()) {
       ImplThreadTaskRunner()->PostTask(
           FROM_HERE,
           base::Bind(&LayerTreeHostContextTestLostContextAndEvictTextures::
                           EvictTexturesOnImplThread,
                      base::Unretained(this)));
     } else {
       DebugScopedSetImplThread impl(proxy());
       EvictTexturesOnImplThread();
     }
   }
 
   void EvictTexturesOnImplThread() {
     impl_host_->EvictTexturesForTesting();
     if (lose_after_evict_)
       LoseContext();
   }
 
   virtual void DidCommitAndDrawFrame() OVERRIDE {
     if (num_commits_ > 1)
       return;
-    EXPECT_TRUE(layer_->HaveBackingAt(0, 0));

[sohanjg, 2014/08/26 09:36:47]

if we use impl-side painting, this test cant be used, is it critical here ?

[danakj, 2014/08/26 18:54:40]

we can't check this here on the main thread with impl painting. we should
continue to check it with ContentLayers

[sohanjg, 2014/08/27 06:59:50]

Done.

     PostEvictTextures();
   }
 
   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {

[danakj, 2014/08/26 18:54:40]

Change this to DrawLayersOnThread

[sohanjg, 2014/08/27 06:59:49]

Done.

     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
     if (num_commits_ > 1)
       return;
     ++num_commits_;

[danakj, 2014/08/26 18:54:40]

when impl painting, check the picture layer has a resource here.

[sohanjg, 2014/08/27 06:59:50]

Done.

     if (!lose_after_evict_)
       LoseContext();
     impl_host_ = impl;
   }
 
   virtual void DidInitializeOutputSurface() OVERRIDE { EndTest(); }
 
   virtual void AfterTest() OVERRIDE {}
 
  protected:
   bool lose_after_evict_;
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> layer_;
+  scoped_refptr<Layer> layer_;
   LayerTreeHostImpl* impl_host_;
   int num_commits_;
 };
 
 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
        LoseAfterEvict_SingleThread_DirectRenderer) {
   lose_after_evict_ = true;
   RunTest(false, false, false);
 }
 
@@ skipping 55 matching lines @@
 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
        LoseBeforeEvict_MultiThread_DelegatingRenderer_ImplSidePaint) {
   lose_after_evict_ = false;
   RunTest(true, true, true);
 }
 
 class LayerTreeHostContextTestLostContextWhileUpdatingResources
     : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestLostContextWhileUpdatingResources()
-      : parent_(FakeContentLayer::Create(&client_)),
-        num_children_(50),
-        times_to_lose_on_end_query_(3) {}
+      : num_children_(50), times_to_lose_on_end_query_(3) {}
 
   virtual scoped_ptr<TestWebGraphicsContext3D> CreateContext3d() OVERRIDE {
     scoped_ptr<TestWebGraphicsContext3D> context =
         LayerTreeHostContextTest::CreateContext3d();
     if (times_to_lose_on_end_query_) {
       --times_to_lose_on_end_query_;
       context->set_times_end_query_succeeds(5);
     }
     return context.Pass();
   }
 
   virtual void SetupTree() OVERRIDE {
+    if (layer_tree_host()->settings().impl_side_painting)
+      parent_ = PictureLayer::Create(&client_);
+    else
+      parent_ = FakeContentLayer::Create(&client_);
+
     parent_->SetBounds(gfx::Size(num_children_, 1));
 
     for (int i = 0; i < num_children_; i++) {
-      scoped_refptr<FakeContentLayer> child =
-          FakeContentLayer::Create(&client_);
+      scoped_refptr<Layer> child;
+      if (layer_tree_host()->settings().impl_side_painting)
+        child = PictureLayer::Create(&client_);
+      else
+        child = FakeContentLayer::Create(&client_);
       child->SetPosition(gfx::PointF(i, 0.f));
       child->SetBounds(gfx::Size(1, 1));
       parent_->AddChild(child);
     }
 
     layer_tree_host()->SetRootLayer(parent_);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
     EXPECT_EQ(0, times_to_lose_on_end_query_);
     EndTest();
   }
 
   virtual void AfterTest() OVERRIDE {
     EXPECT_EQ(0, times_to_lose_on_end_query_);
   }
 
  private:
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> parent_;
+  scoped_refptr<Layer> parent_;
   int num_children_;
   int times_to_lose_on_end_query_;
 };
 
 SINGLE_AND_MULTI_THREAD_NOIMPL_TEST_F(
     LayerTreeHostContextTestLostContextWhileUpdatingResources);
 
 class LayerTreeHostContextTestLayersNotified : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestLayersNotified()
       : LayerTreeHostContextTest(), num_commits_(0) {}
 
   virtual void SetupTree() OVERRIDE {
-    root_ = FakeContentLayer::Create(&client_);
-    child_ = FakeContentLayer::Create(&client_);
-    grandchild_ = FakeContentLayer::Create(&client_);
+    if (layer_tree_host()->settings().impl_side_painting) {
+      root_ = PictureLayer::Create(&client_);

[danakj, 2014/08/26 18:54:41]

FakePictureLayers, or you can't cast the impl to a FakePictureLayerImpl.

[sohanjg, 2014/08/27 06:59:49]

Done.

+      child_ = PictureLayer::Create(&client_);
+      grandchild_ = PictureLayer::Create(&client_);
+    } else {
+      root_ = FakeContentLayer::Create(&client_);
+      child_ = FakeContentLayer::Create(&client_);
+      grandchild_ = FakeContentLayer::Create(&client_);
+    }
 
     root_->AddChild(child_);
     child_->AddChild(grandchild_);
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
     LayerTreeHostContextTest::DidActivateTreeOnThread(host_impl);
 
-    FakeContentLayerImpl* root = static_cast<FakeContentLayerImpl*>(
-        host_impl->active_tree()->root_layer());
-    FakeContentLayerImpl* child =
-        static_cast<FakeContentLayerImpl*>(root->children()[0]);
-    FakeContentLayerImpl* grandchild =
-        static_cast<FakeContentLayerImpl*>(child->children()[0]);
+    LayerImpl* root;
+    LayerImpl* child;
+    LayerImpl* grandchild;
+
+    if (layer_tree_host()->settings().impl_side_painting) {
+      root = static_cast<FakePictureLayerImpl*>(
+          host_impl->active_tree()->root_layer());
+      child = static_cast<FakePictureLayerImpl*>(root->children()[0]);
+      grandchild = static_cast<FakePictureLayerImpl*>(child->children()[0]);
+
+    } else {
+      root = static_cast<FakeContentLayerImpl*>(
+          host_impl->active_tree()->root_layer());
+      child = static_cast<FakeContentLayerImpl*>(root->children()[0]);
+      grandchild = static_cast<FakeContentLayerImpl*>(child->children()[0]);
+    }
 
     ++num_commits_;
     switch (num_commits_) {
       case 1:
-        EXPECT_EQ(0u, root->lost_output_surface_count());
-        EXPECT_EQ(0u, child->lost_output_surface_count());
-        EXPECT_EQ(0u, grandchild->lost_output_surface_count());

[sohanjg, 2014/08/26 09:36:47]

if we use impl-side, these test cant be used, are these critical here ?

[sohanjg, 2014/08/26 10:56:26]

can we check something like LayerPropertyChanged ? and have 1 common test. 
or more specifically have 2 tests, FakeContentLayer will check
lost_output_surface_count like before, and have 1 new test to make
FakePictureLayer test some push_properties_count ?

[danakj, 2014/08/26 18:54:40]

add this to FakePictureLayerImpl.

https://code.google.com/p/chromium/codesearch#chromium/src/cc/test/fake_conte...

[sohanjg, 2014/08/27 06:59:50]

Done.

         // Lose the context and struggle to recreate it.
         LoseContext();
         times_to_fail_create_ = 1;
         break;
       case 2:
-        EXPECT_GE(1u, root->lost_output_surface_count());
-        EXPECT_GE(1u, child->lost_output_surface_count());
-        EXPECT_GE(1u, grandchild->lost_output_surface_count());

[sohanjg, 2014/08/26 09:36:47]

if we use impl-side, these test cant be used, are these critical here ?

         EndTest();
         break;
       default:
         NOTREACHED();
     }
   }
 
   virtual void AfterTest() OVERRIDE {}
 
  private:
   int num_commits_;
 
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> root_;
-  scoped_refptr<FakeContentLayer> child_;
-  scoped_refptr<FakeContentLayer> grandchild_;
+  scoped_refptr<Layer> root_;
+  scoped_refptr<Layer> child_;
+  scoped_refptr<Layer> grandchild_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestLayersNotified);
 
 class LayerTreeHostContextTestDontUseLostResources
     : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestDontUseLostResources() : lost_context_(false) {
     context_should_support_io_surface_ = true;
 
@@ skipping 52 matching lines @@
     scoped_refptr<Layer> root = Layer::Create();
     root->SetBounds(gfx::Size(10, 10));
     root->SetIsDrawable(true);
 
     scoped_refptr<FakeDelegatedRendererLayer> delegated =
         FakeDelegatedRendererLayer::Create(delegated_frame_provider_.get());
     delegated->SetBounds(gfx::Size(10, 10));
     delegated->SetIsDrawable(true);
     root->AddChild(delegated);
 
-    scoped_refptr<ContentLayer> content = ContentLayer::Create(&client_);
-    content->SetBounds(gfx::Size(10, 10));
-    content->SetIsDrawable(true);
-    root->AddChild(content);
+    scoped_refptr<Layer> layer;
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer = PictureLayer::Create(&client_);
+    else
+      layer = ContentLayer::Create(&client_);
+    layer->SetBounds(gfx::Size(10, 10));
+    layer->SetIsDrawable(true);
+    root->AddChild(layer);
 
     scoped_refptr<TextureLayer> texture = TextureLayer::CreateForMailbox(NULL);
     texture->SetBounds(gfx::Size(10, 10));
     texture->SetIsDrawable(true);
     texture->SetTextureMailbox(
         TextureMailbox(mailbox, GL_TEXTURE_2D, sync_point),
         SingleReleaseCallback::Create(
             base::Bind(&LayerTreeHostContextTestDontUseLostResources::
                             EmptyReleaseCallback)));
     root->AddChild(texture);
 
-    scoped_refptr<ContentLayer> mask = ContentLayer::Create(&client_);
+    scoped_refptr<Layer> mask;
+    if (layer_tree_host()->settings().impl_side_painting)
+      mask = PictureLayer::Create(&client_);
+    else
+      mask = ContentLayer::Create(&client_);
     mask->SetBounds(gfx::Size(10, 10));
 
-    scoped_refptr<ContentLayer> content_with_mask =
-        ContentLayer::Create(&client_);
-    content_with_mask->SetBounds(gfx::Size(10, 10));
-    content_with_mask->SetIsDrawable(true);
-    content_with_mask->SetMaskLayer(mask.get());
-    root->AddChild(content_with_mask);
+    scoped_refptr<Layer> layer_with_mask;
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer_with_mask = PictureLayer::Create(&client_);
+    else
+      layer_with_mask = ContentLayer::Create(&client_);
+    layer_with_mask->SetBounds(gfx::Size(10, 10));
+    layer_with_mask->SetIsDrawable(true);
+    layer_with_mask->SetMaskLayer(mask.get());
+    root->AddChild(layer_with_mask);
 
     scoped_refptr<VideoLayer> video_color =
         VideoLayer::Create(&color_frame_provider_, media::VIDEO_ROTATION_0);
     video_color->SetBounds(gfx::Size(10, 10));
     video_color->SetIsDrawable(true);
     root->AddChild(video_color);
 
     scoped_refptr<VideoLayer> video_hw =
         VideoLayer::Create(&hw_frame_provider_, media::VIDEO_ROTATION_0);
     video_hw->SetBounds(gfx::Size(10, 10));
@@ skipping 40 matching lines @@
       root->AddChild(io_surface);
     }
 
     // Enable the hud.
     LayerTreeDebugState debug_state;
     debug_state.show_property_changed_rects = true;
     layer_tree_host()->SetDebugState(debug_state);
 
     scoped_refptr<PaintedScrollbarLayer> scrollbar =
         PaintedScrollbarLayer::Create(
-            scoped_ptr<Scrollbar>(new FakeScrollbar).Pass(), content->id());
+            scoped_ptr<Scrollbar>(new FakeScrollbar).Pass(), layer->id());
     scrollbar->SetBounds(gfx::Size(10, 10));
     scrollbar->SetIsDrawable(true);
     root->AddChild(scrollbar);
 
     layer_tree_host()->SetRootLayer(root);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
@@ skipping 552 matching lines @@
     }
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(UIResourceLostEviction);
 
 class LayerTreeHostContextTestSurfaceCreateCallback
     : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestSurfaceCreateCallback()
-      : LayerTreeHostContextTest(),
-        layer_(FakeContentLayer::Create(&client_)) {}
+      : LayerTreeHostContextTest() {}
 
   virtual void SetupTree() OVERRIDE {
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer_ = PictureLayer::Create(&client_);
+    else
+      layer_ = FakeContentLayer::Create(&client_);
     layer_->SetBounds(gfx::Size(10, 20));
     layer_tree_host()->SetRootLayer(layer_);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 
   virtual void DidCommit() OVERRIDE {
     switch (layer_tree_host()->source_frame_number()) {
       case 1:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());

[sohanjg, 2014/08/26 09:36:47]

this seems to be the only thing this test checks, after removing them is this
test-suite meaningful anymore?

[sohanjg, 2014/08/26 10:56:26]

like LayerTreeHostContextTestLayersNotified test, can we do similar here ?

[danakj, 2014/08/26 18:54:40]

Add this to FakePictureLayer.

https://code.google.com/p/chromium/codesearch#chromium/src/cc/test/fake_conte...

[sohanjg, 2014/08/27 06:59:50]

Done.

         layer_tree_host()->SetNeedsCommit();
         break;
       case 2:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());
         layer_tree_host()->SetNeedsCommit();
         break;
       case 3:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());
         break;
       case 4:
-        EXPECT_EQ(2u, layer_->output_surface_created_count());
         layer_tree_host()->SetNeedsCommit();
         break;
     }
   }
 
   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
     switch (LastCommittedSourceFrameNumber(impl)) {
       case 0:
         break;
       case 1:
         break;
       case 2:
         LoseContext();
         break;
       case 3:
         EndTest();
         break;
     }
   }
 
   virtual void AfterTest() OVERRIDE {}
 
  protected:
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> layer_;
+  scoped_refptr<Layer> layer_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestSurfaceCreateCallback);
 
 class LayerTreeHostContextTestLoseAfterSendingBeginMainFrame
     : public LayerTreeHostContextTest {
  protected:
   virtual void BeginTest() OVERRIDE {
     deferred_ = false;
     PostSetNeedsCommitToMainThread();
@@ skipping 45 matching lines @@
   virtual void AfterTest() OVERRIDE {}
 
   bool deferred_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostContextTestLoseAfterSendingBeginMainFrame);
 
 }  // namespace
 }  // namespace cc