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

BUG=401492

Review URL: https://codereview.chromium.org/475633008

Cr-Commit-Position: refs/heads/master@{#295241}

cc/test/fake_picture_layer.cc

@@ -12,7 +12,8 @@ FakePictureLayer::FakePictureLayer(ContentLayerClient* client)
     : PictureLayer(client),
       update_count_(0),
       push_properties_count_(0),
-      always_update_resources_(false) {
+      always_update_resources_(false),
+      output_surface_created_count_(0) {
   SetBounds(gfx::Size(1, 1));
   SetIsDrawable(true);
 }
@@ -36,5 +37,9 @@ void FakePictureLayer::PushPropertiesTo(LayerImpl* layer) {
   push_properties_count_++;
 }
 
+void FakePictureLayer::OnOutputSurfaceCreated() {
+  PictureLayer::OnOutputSurfaceCreated();
+  output_surface_created_count_++;
+}
 
 }  // namespace cc

cc/test/fake_picture_layer.h

@@ -35,6 +35,11 @@ class FakePictureLayer : public PictureLayer {
 
   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
 
+  virtual void OnOutputSurfaceCreated() OVERRIDE;
+  size_t output_surface_created_count() const {
+    return output_surface_created_count_;
+  }
+
  private:
   explicit FakePictureLayer(ContentLayerClient* client);
   virtual ~FakePictureLayer();
@@ -42,6 +47,7 @@ class FakePictureLayer : public PictureLayer {
   size_t update_count_;
   size_t push_properties_count_;
   bool always_update_resources_;
+  size_t output_surface_created_count_;
 };
 
 }  // namespace cc

cc/test/fake_picture_layer_impl.cc

@@ -17,7 +17,8 @@ FakePictureLayerImpl::FakePictureLayerImpl(LayerTreeImpl* tree_impl,
       append_quads_count_(0),
       did_become_active_call_count_(0),
       has_valid_tile_priorities_(false),
-      use_set_valid_tile_priorities_flag_(false) {
+      use_set_valid_tile_priorities_flag_(false),
+      release_resources_count_(0) {
   pile_ = pile;
   SetBounds(pile_->tiling_size());
   SetContentBounds(pile_->tiling_size());
@@ -31,7 +32,8 @@ FakePictureLayerImpl::FakePictureLayerImpl(LayerTreeImpl* tree_impl,
       append_quads_count_(0),
       did_become_active_call_count_(0),
       has_valid_tile_priorities_(false),
-      use_set_valid_tile_priorities_flag_(false) {
+      use_set_valid_tile_priorities_flag_(false),
+      release_resources_count_(0) {
   pile_ = pile;
   SetBounds(layer_bounds);
   SetContentBounds(layer_bounds);
@@ -42,7 +44,8 @@ FakePictureLayerImpl::FakePictureLayerImpl(LayerTreeImpl* tree_impl, int id)
       append_quads_count_(0),
       did_become_active_call_count_(0),
       has_valid_tile_priorities_(false),
-      use_set_valid_tile_priorities_flag_(false) {
+      use_set_valid_tile_priorities_flag_(false),
+      release_resources_count_(0) {
 }
 
 scoped_ptr<LayerImpl> FakePictureLayerImpl::CreateLayerImpl(
@@ -179,4 +182,9 @@ bool FakePictureLayerImpl::HasValidTilePriorities() const {
              : PictureLayerImpl::HasValidTilePriorities();
 }
 
+void FakePictureLayerImpl::ReleaseResources() {
+  PictureLayerImpl::ReleaseResources();
+  ++release_resources_count_;
+}
+
 }  // namespace cc

cc/test/fake_picture_layer_impl.h

@@ -112,6 +112,11 @@ class FakePictureLayerImpl : public PictureLayerImpl {
   void ResetAllTilesPriorities();
   PictureLayerTilingSet* GetTilings() { return tilings_.get(); }
 
+  size_t release_resources_count() const { return release_resources_count_; }
+  void reset_release_resources_count() { release_resources_count_ = 0; }
+
+  virtual void ReleaseResources() OVERRIDE;
+
  protected:
   FakePictureLayerImpl(
       LayerTreeImpl* tree_impl,
@@ -130,6 +135,7 @@ class FakePictureLayerImpl : public PictureLayerImpl {
   size_t did_become_active_call_count_;
   bool has_valid_tile_priorities_;
   bool use_set_valid_tile_priorities_flag_;
+  size_t release_resources_count_;
 };
 
 }  // namespace cc

cc/trees/layer_tree_host_impl.cc

@@ -2115,6 +2115,11 @@ bool LayerTreeHostImpl::InitializeRenderer(
   client_->SetMaxSwapsPendingOnImplThread(max_frames_pending);
   client_->OnCanDrawStateChanged(CanDraw());
 
+  // There will not be anything to draw here, so set high res
+  // to avoid checkerboards, typically when we are recovering
+  // from lost context.
+  active_tree_->SetRequiresHighResToDraw();
+
   return true;
 }