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

cc/test/fake_picture_layer_impl.cc

Index: cc/test/fake_picture_layer_impl.cc
diff --git a/cc/test/fake_picture_layer_impl.cc b/cc/test/fake_picture_layer_impl.cc
index 78924cdaa93b78d4394e7e1e76667de4ddfac15a..be1e124d5aa78c1e0113083669814bb3df1dc8da 100644
--- a/cc/test/fake_picture_layer_impl.cc
+++ b/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),
+      lost_output_surface_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),
+      lost_output_surface_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),
+      lost_output_surface_count_(0) {
 }
 
 scoped_ptr<LayerImpl> FakePictureLayerImpl::CreateLayerImpl(
@@ -175,4 +178,9 @@ bool FakePictureLayerImpl::HasValidTilePriorities() const {
              : PictureLayerImpl::HasValidTilePriorities();
 }
 
+void FakePictureLayerImpl::ReleaseResources() {
+  PictureLayerImpl::ReleaseResources();
+  ++lost_output_surface_count_;
+}
+
 }  // namespace cc