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

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 1909 matching lines @@
   host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
   host_impl_->DidDrawAllLayers(frame);
 }
 
 TEST_F(LayerTreeHostImplTest, PrepareToDrawSucceedsWithMissingTiles) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 3));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
 
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = true;
   bool had_incomplete_tile = false;
   bool is_animating = false;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            4,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
-  LayerTreeHostImpl::FrameData frame;
-  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+  LayerTreeHostImpl::FrameData frame2;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest, PrepareToDrawSucceedsWithIncompleteTile) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 3));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
 
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = false;
   bool had_incomplete_tile = true;
   bool is_animating = false;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            4,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
-  LayerTreeHostImpl::FrameData frame;
-  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+  LayerTreeHostImpl::FrameData frame2;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest,
        PrepareToDrawFailsWithAnimationAndMissingTilesUsesCheckerboard) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 5));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
+
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = true;
   bool had_incomplete_tile = false;
   bool is_animating = true;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            6,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
-  LayerTreeHostImpl::FrameData frame;
+  LayerTreeHostImpl::FrameData frame2;
   EXPECT_EQ(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS,
-            host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+            host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest,
        PrepareToDrawSucceedsWithAnimationAndIncompleteTiles) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 5));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
+
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = false;
   bool had_incomplete_tile = true;
   bool is_animating = true;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            6,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
-  LayerTreeHostImpl::FrameData frame;
-  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+  LayerTreeHostImpl::FrameData frame2;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest, PrepareToDrawSucceedsWhenHighResRequired) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 7));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
+
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = false;
   bool had_incomplete_tile = false;
   bool is_animating = false;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            8,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
   host_impl_->active_tree()->SetRequiresHighResToDraw();
-  LayerTreeHostImpl::FrameData frame;
-  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+  LayerTreeHostImpl::FrameData frame2;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest,
        PrepareToDrawFailsWhenHighResRequiredAndIncompleteTiles) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 7));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
+
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = false;
   bool had_incomplete_tile = true;
   bool is_animating = false;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            8,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
   host_impl_->active_tree()->SetRequiresHighResToDraw();
-  LayerTreeHostImpl::FrameData frame;
+  LayerTreeHostImpl::FrameData frame2;
   EXPECT_EQ(DRAW_ABORTED_MISSING_HIGH_RES_CONTENT,
-            host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+            host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest,
        PrepareToDrawFailsWhenHighResRequiredAndMissingTile) {
   host_impl_->active_tree()->SetRootLayer(
       DidDrawCheckLayer::Create(host_impl_->active_tree(), 7));
   DidDrawCheckLayer* root =
       static_cast<DidDrawCheckLayer*>(host_impl_->active_tree()->root_layer());
+
+  LayerTreeHostImpl::FrameData frame;
+  EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
+  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame);
+  host_impl_->SwapBuffers(frame);
+
   bool tile_missing = true;
   bool had_incomplete_tile = false;
   bool is_animating = false;
   root->AddChild(
       MissingTextureAnimatingLayer::Create(host_impl_->active_tree(),
                                            8,
                                            tile_missing,
                                            had_incomplete_tile,
                                            is_animating,
                                            host_impl_->resource_provider()));
   host_impl_->active_tree()->SetRequiresHighResToDraw();
-  LayerTreeHostImpl::FrameData frame;
+  LayerTreeHostImpl::FrameData frame2;
   EXPECT_EQ(DRAW_ABORTED_MISSING_HIGH_RES_CONTENT,
-            host_impl_->PrepareToDraw(&frame));
-  host_impl_->DrawLayers(&frame, gfx::FrameTime::Now());
-  host_impl_->DidDrawAllLayers(frame);
+            host_impl_->PrepareToDraw(&frame2));
+  host_impl_->DrawLayers(&frame2, gfx::FrameTime::Now());
+  host_impl_->DidDrawAllLayers(frame2);
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollRootIgnored) {
   scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl_->active_tree(), 1);
   root->SetScrollClipLayer(Layer::INVALID_ID);
   host_impl_->active_tree()->SetRootLayer(root.Pass());
   DrawFrame();
 
   // Scroll event is ignored because layer is not scrollable.
   EXPECT_EQ(InputHandler::ScrollIgnored,
@@ skipping 3797 matching lines @@
   EXPECT_EQ(allow_nice_to_have_cutoff_value, current_priority_cutoff_value_);
 
   host_impl_->SetVisible(false);
   EXPECT_EQ(0u, current_limit_bytes_);
   EXPECT_EQ(nothing_cutoff_value, current_priority_cutoff_value_);
 }
 
 TEST_F(LayerTreeHostImplTest, RequireHighResWhenVisible) {
   ASSERT_TRUE(host_impl_->active_tree());
 
-  EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
+  // RequiresHighResToDraw is set when new output surface is used.
+  EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
+
+  host_impl_->active_tree()->ResetRequiresHighResToDraw();
+
   host_impl_->SetVisible(false);
   EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetVisible(true);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetVisible(false);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
 
-  host_impl_->CreatePendingTree();
-  host_impl_->ActivateSyncTree();
+  host_impl_->active_tree()->ResetRequiresHighResToDraw();
 
   EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetVisible(true);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
 }
 
 TEST_F(LayerTreeHostImplTest, RequireHighResAfterGpuRasterizationToggles) {
   ASSERT_TRUE(host_impl_->active_tree());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
 
-  EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
+  // RequiresHighResToDraw is set when new output surface is used.
+  EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
+
+  host_impl_->active_tree()->ResetRequiresHighResToDraw();
+
   host_impl_->SetUseGpuRasterization(false);
   EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetUseGpuRasterization(true);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetUseGpuRasterization(false);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
 
-  host_impl_->CreatePendingTree();
-  host_impl_->ActivateSyncTree();
+  host_impl_->active_tree()->ResetRequiresHighResToDraw();
 
   EXPECT_FALSE(host_impl_->active_tree()->RequiresHighResToDraw());
   host_impl_->SetUseGpuRasterization(true);
   EXPECT_TRUE(host_impl_->active_tree()->RequiresHighResToDraw());
 }
 
 class LayerTreeHostImplTestManageTiles : public LayerTreeHostImplTest {
  public:
   virtual void SetUp() OVERRIDE {
     LayerTreeSettings settings;
@@ skipping 1180 matching lines @@
   // surface.
   EXPECT_EQ(0, num_lost_surfaces_);
   host_impl_->DidLoseOutputSurface();
   EXPECT_EQ(1, num_lost_surfaces_);
   host_impl_->DidLoseOutputSurface();
   EXPECT_LE(1, num_lost_surfaces_);
 }
 
 }  // namespace
 }  // namespace cc