(Reland) cc:Use impl-side painting in LTH context lost test

cc/trees/layer_tree_host_unittest_context.cc

Index: cc/trees/layer_tree_host_unittest_context.cc
diff --git a/cc/trees/layer_tree_host_unittest_context.cc b/cc/trees/layer_tree_host_unittest_context.cc
index 0e15071458f3842a22cbe1913183b66eeacbc1bc..007059749676cdffb3affc9a4a426c502d463628 100644
--- a/cc/trees/layer_tree_host_unittest_context.cc
+++ b/cc/trees/layer_tree_host_unittest_context.cc
@@ -28,6 +28,8 @@
 #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"
@@ -323,11 +325,19 @@ class LayerTreeHostContextTestLostContextSucceedsWithContent
     root_->SetBounds(gfx::Size(10, 10));
     root_->SetIsDrawable(true);
 
-    content_ = FakeContentLayer::Create(&client_);
-    content_->SetBounds(gfx::Size(10, 10));
-    content_->SetIsDrawable(true);
+    // Paint non-solid color.
+    SkPaint paint;
+    paint.setColor(SkColorSetARGB(100, 80, 200, 200));
+    client_.add_draw_rect(gfx::Rect(0, 0, 5, 5), paint);
 
-    root_->AddChild(content_);
+    if (layer_tree_host()->settings().impl_side_painting)
+      layer_ = FakePictureLayer::Create(&client_);
+    else
+      layer_ = FakeContentLayer::Create(&client_);
+    layer_->SetBounds(gfx::Size(10, 10));
+    layer_->SetIsDrawable(true);
+
+    root_->AddChild(layer_);
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeHostContextTest::SetupTree();
@@ -337,27 +347,33 @@ class LayerTreeHostContextTestLostContextSucceedsWithContent
     // 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 (!host_impl->settings().impl_side_painting) {
+      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));
+    } else {
+      FakePictureLayerImpl* picture_impl = static_cast<FakePictureLayerImpl*>(
+          host_impl->active_tree()->root_layer()->children()[0]);
+      EXPECT_TRUE(picture_impl->HighResTiling()->TileAt(0, 0)->IsReadyToDraw());
+    }
   }
 
  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(
+// This test uses TiledLayer and PictureLayer to check for a working context.
+SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostContextTestLostContextSucceedsWithContent);
 
 class LayerTreeHostContextTestCreateOutputSurfaceFails
@@ -437,13 +453,26 @@ class LayerTreeHostContextTestLostContextAndEvictTextures
  public:
   LayerTreeHostContextTestLostContextAndEvictTextures()
       : LayerTreeHostContextTest(),
-        layer_(FakeContentLayer::Create(&client_)),
         impl_host_(0),
-        num_commits_(0) {}
+        num_commits_(0),
+        lost_context_(false) {}
 
   virtual void SetupTree() OVERRIDE {
-    layer_->SetBounds(gfx::Size(10, 20));
-    layer_tree_host()->SetRootLayer(layer_);
+    // Paint non-solid color.
+    SkPaint paint;
+    paint.setColor(SkColorSetARGB(100, 80, 200, 200));
+    client_.add_draw_rect(gfx::Rect(0, 0, 5, 5), paint);
+
+    if (layer_tree_host()->settings().impl_side_painting) {
+      picture_layer_ = FakePictureLayer::Create(&client_);
+      picture_layer_->SetBounds(gfx::Size(10, 20));
+      layer_tree_host()->SetRootLayer(picture_layer_);
+    } else {
+      content_layer_ = FakeContentLayer::Create(&client_);
+      content_layer_->SetBounds(gfx::Size(10, 20));
+      layer_tree_host()->SetRootLayer(content_layer_);
+    }
+
     LayerTreeHostContextTest::SetupTree();
   }
 
@@ -464,14 +493,19 @@ class LayerTreeHostContextTestLostContextAndEvictTextures
 
   void EvictTexturesOnImplThread() {
     impl_host_->EvictTexturesForTesting();
-    if (lose_after_evict_)
+
+    if (lose_after_evict_) {
       LoseContext();
+      lost_context_ = true;
+    }
   }
 
   virtual void DidCommitAndDrawFrame() OVERRIDE {
     if (num_commits_ > 1)
       return;
-    EXPECT_TRUE(layer_->HaveBackingAt(0, 0));
+    if (!layer_tree_host()->settings().impl_side_painting) {
+      EXPECT_TRUE(content_layer_->HaveBackingAt(0, 0));
+    }
     PostEvictTextures();
   }
 
@@ -480,21 +514,40 @@ class LayerTreeHostContextTestLostContextAndEvictTextures
     if (num_commits_ > 1)
       return;
     ++num_commits_;
-    if (!lose_after_evict_)
+    if (!lose_after_evict_) {
       LoseContext();
+      lost_context_ = true;
+    }
+  }
+
+  virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
+    if (impl->settings().impl_side_painting) {
+      FakePictureLayerImpl* picture_impl =
+          static_cast<FakePictureLayerImpl*>(impl->active_tree()->root_layer());
+      EXPECT_TRUE(picture_impl->HighResTiling()->TileAt(0, 0)->IsReadyToDraw());
+    } else {
+      FakeContentLayerImpl* content_impl =
+          static_cast<FakeContentLayerImpl*>(impl->active_tree()->root_layer());
+      EXPECT_TRUE(content_impl->HaveResourceForTileAt(0, 0));
+    }
+
     impl_host_ = impl;
+    if (lost_context_)
+      EndTest();
   }
 
-  virtual void DidInitializeOutputSurface() OVERRIDE { EndTest(); }
+  virtual void DidInitializeOutputSurface() OVERRIDE {}
 
   virtual void AfterTest() OVERRIDE {}
 
  protected:
   bool lose_after_evict_;
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> layer_;
+  scoped_refptr<FakeContentLayer> content_layer_;
+  scoped_refptr<FakePictureLayer> picture_layer_;
   LayerTreeHostImpl* impl_host_;
   int num_commits_;
+  bool lost_context_;
 };
 
 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
@@ -568,9 +621,7 @@ 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 =
@@ -583,11 +634,19 @@ class LayerTreeHostContextTestLostContextWhileUpdatingResources
   }
 
   virtual void SetupTree() OVERRIDE {
+    if (layer_tree_host()->settings().impl_side_painting)
+      parent_ = FakePictureLayer::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 = FakePictureLayer::Create(&client_);
+      else
+        child = FakeContentLayer::Create(&client_);
       child->SetPosition(gfx::PointF(i, 0.f));
       child->SetBounds(gfx::Size(1, 1));
       parent_->AddChild(child);
@@ -610,7 +669,7 @@ class LayerTreeHostContextTestLostContextWhileUpdatingResources
 
  private:
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> parent_;
+  scoped_refptr<Layer> parent_;
   int num_children_;
   int times_to_lose_on_end_query_;
 };
@@ -624,9 +683,15 @@ class LayerTreeHostContextTestLayersNotified : public LayerTreeHostContextTest {
       : 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_ = FakePictureLayer::Create(&client_);
+      child_ = FakePictureLayer::Create(&client_);
+      grandchild_ = FakePictureLayer::Create(&client_);
+    } else {
+      root_ = FakeContentLayer::Create(&client_);
+      child_ = FakeContentLayer::Create(&client_);
+      grandchild_ = FakeContentLayer::Create(&client_);
+    }
 
     root_->AddChild(child_);
     child_->AddChild(grandchild_);
@@ -640,27 +705,58 @@ class LayerTreeHostContextTestLayersNotified : public LayerTreeHostContextTest {
   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]);
+    FakePictureLayerImpl* root_picture = NULL;
+    FakePictureLayerImpl* child_picture = NULL;
+    FakePictureLayerImpl* grandchild_picture = NULL;
+    FakeContentLayerImpl* root_content = NULL;
+    FakeContentLayerImpl* child_content = NULL;
+    FakeContentLayerImpl* grandchild_content = NULL;
+
+    if (layer_tree_host()->settings().impl_side_painting) {
+      root_picture = static_cast<FakePictureLayerImpl*>(
+          host_impl->active_tree()->root_layer());
+      child_picture =
+          static_cast<FakePictureLayerImpl*>(root_picture->children()[0]);
+      grandchild_picture =
+          static_cast<FakePictureLayerImpl*>(child_picture->children()[0]);
+
+    } else {
+      root_content = static_cast<FakeContentLayerImpl*>(
+          host_impl->active_tree()->root_layer());
+      child_content =
+          static_cast<FakeContentLayerImpl*>(root_content->children()[0]);
+      grandchild_content =
+          static_cast<FakeContentLayerImpl*>(child_content->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());
+        if (layer_tree_host()->settings().impl_side_painting) {
+          EXPECT_EQ(0u, root_picture->release_resources_count());
+          EXPECT_EQ(0u, child_picture->release_resources_count());
+          EXPECT_EQ(0u, grandchild_picture->release_resources_count());
+        } else {
+          EXPECT_EQ(0u, root_content->lost_output_surface_count());
+          EXPECT_EQ(0u, child_content->lost_output_surface_count());
+          EXPECT_EQ(0u, grandchild_content->lost_output_surface_count());
+        }
+
         // 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());
+        if (layer_tree_host()->settings().impl_side_painting) {
+          EXPECT_TRUE(root_picture->release_resources_count());
+          EXPECT_TRUE(child_picture->release_resources_count());
+          EXPECT_TRUE(grandchild_picture->release_resources_count());
+        } else {
+          EXPECT_TRUE(root_content->lost_output_surface_count());
+          EXPECT_TRUE(child_content->lost_output_surface_count());
+          EXPECT_TRUE(grandchild_content->lost_output_surface_count());
+        }
+
         EndTest();
         break;
       default:
@@ -674,9 +770,9 @@ class LayerTreeHostContextTestLayersNotified : public LayerTreeHostContextTest {
   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);
@@ -754,10 +850,14 @@ class LayerTreeHostContextTestDontUseLostResources
     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));
@@ -769,15 +869,22 @@ class 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);
@@ -838,7 +945,7 @@ class LayerTreeHostContextTestDontUseLostResources
 
     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);
@@ -1411,12 +1518,19 @@ class LayerTreeHostContextTestSurfaceCreateCallback
     : public LayerTreeHostContextTest {
  public:
   LayerTreeHostContextTestSurfaceCreateCallback()
-      : LayerTreeHostContextTest(),
-        layer_(FakeContentLayer::Create(&client_)) {}
+      : LayerTreeHostContextTest() {}
 
   virtual void SetupTree() OVERRIDE {
-    layer_->SetBounds(gfx::Size(10, 20));
-    layer_tree_host()->SetRootLayer(layer_);
+    if (layer_tree_host()->settings().impl_side_painting) {
+      picture_layer_ = FakePictureLayer::Create(&client_);
+      picture_layer_->SetBounds(gfx::Size(10, 20));
+      layer_tree_host()->SetRootLayer(picture_layer_);
+    } else {
+      content_layer_ = FakeContentLayer::Create(&client_);
+      content_layer_->SetBounds(gfx::Size(10, 20));
+      layer_tree_host()->SetRootLayer(content_layer_);
+    }
+
     LayerTreeHostContextTest::SetupTree();
   }
 
@@ -1425,18 +1539,30 @@ class LayerTreeHostContextTestSurfaceCreateCallback
   virtual void DidCommit() OVERRIDE {
     switch (layer_tree_host()->source_frame_number()) {
       case 1:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());
+        if (layer_tree_host()->settings().impl_side_painting)
+          EXPECT_EQ(1u, picture_layer_->output_surface_created_count());
+        else
+          EXPECT_EQ(1u, content_layer_->output_surface_created_count());
         layer_tree_host()->SetNeedsCommit();
         break;
       case 2:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());
+        if (layer_tree_host()->settings().impl_side_painting)
+          EXPECT_EQ(1u, picture_layer_->output_surface_created_count());
+        else
+          EXPECT_EQ(1u, content_layer_->output_surface_created_count());
         layer_tree_host()->SetNeedsCommit();
         break;
       case 3:
-        EXPECT_EQ(1u, layer_->output_surface_created_count());
+        if (layer_tree_host()->settings().impl_side_painting)
+          EXPECT_EQ(1u, picture_layer_->output_surface_created_count());
+        else
+          EXPECT_EQ(1u, content_layer_->output_surface_created_count());
         break;
       case 4:
-        EXPECT_EQ(2u, layer_->output_surface_created_count());
+        if (layer_tree_host()->settings().impl_side_painting)
+          EXPECT_EQ(2u, picture_layer_->output_surface_created_count());
+        else
+          EXPECT_EQ(2u, content_layer_->output_surface_created_count());
         layer_tree_host()->SetNeedsCommit();
         break;
     }
@@ -1462,7 +1588,8 @@ class LayerTreeHostContextTestSurfaceCreateCallback
 
  protected:
   FakeContentLayerClient client_;
-  scoped_refptr<FakeContentLayer> layer_;
+  scoped_refptr<FakePictureLayer> picture_layer_;
+  scoped_refptr<FakeContentLayer> content_layer_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestSurfaceCreateCallback);