cc: Async readback.

cc/quads/render_pass_unittest.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/quads/render_pass.h"
 
 #include "cc/base/math_util.h"
 #include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/render_pass_test_common.h"
@@ skipping 11 matching lines @@
   // If you add a new field to this class, make sure to add it to the
   // Copy() tests.
   RenderPass::Id id;
   QuadList quad_list;
   SharedQuadStateList shared_quad_state_list;
   gfx::Transform transform_to_root_target;
   gfx::Rect output_rect;
   gfx::RectF damage_rect;
   bool has_transparent_background;
   bool has_occlusion_from_outside_target_surface;
+  std::vector<RenderPass::RequestCopyAsBitmapCallback> copy_callbacks;
 };
 
 TEST(RenderPassTest, CopyShouldBeIdenticalExceptIdAndQuads) {
   RenderPass::Id id(3, 2);
   gfx::Rect output_rect(45, 22, 120, 13);
   gfx::Transform transform_to_root =
       gfx::Transform(1.0, 0.5, 0.5, -0.5, -1.0, 0.0);
   gfx::Rect damage_rect(56, 123, 19, 43);
   bool has_transparent_background = true;
   bool has_occlusion_from_outside_target_surface = true;
 
   scoped_ptr<TestRenderPass> pass = TestRenderPass::Create();
   pass->SetAll(id,
                output_rect,
                damage_rect,
                transform_to_root,
                has_transparent_background,
                has_occlusion_from_outside_target_surface);
+  pass->copy_callbacks.push_back(RenderPass::RequestCopyAsBitmapCallback());
 
   // Stick a quad in the pass, this should not get copied.
   scoped_ptr<SharedQuadState> shared_state = SharedQuadState::Create();
   shared_state->SetAll(
       gfx::Transform(), gfx::Size(), gfx::Rect(), gfx::Rect(), false, 1);
   pass->AppendSharedQuadState(shared_state.Pass());
 
   scoped_ptr<CheckerboardDrawQuad> checkerboard_quad =
       CheckerboardDrawQuad::Create();
   checkerboard_quad->SetNew(
       pass->shared_quad_state_list.back(), gfx::Rect(), SkColor());
   pass->quad_list.push_back(checkerboard_quad.PassAs<DrawQuad>());
 
   RenderPass::Id new_id(63, 4);
 
   scoped_ptr<RenderPass> copy = pass->Copy(new_id);
   EXPECT_EQ(new_id, copy->id);
   EXPECT_RECT_EQ(pass->output_rect, copy->output_rect);
   EXPECT_EQ(pass->transform_to_root_target, copy->transform_to_root_target);
   EXPECT_RECT_EQ(pass->damage_rect, copy->damage_rect);
   EXPECT_EQ(pass->has_transparent_background, copy->has_transparent_background);
   EXPECT_EQ(pass->has_occlusion_from_outside_target_surface,
             copy->has_occlusion_from_outside_target_surface);
   EXPECT_EQ(0u, copy->quad_list.size());
 
+  // The copy callback should not be copied/duplicated.
+  EXPECT_EQ(0u, copy->copy_callbacks.size());
+
   EXPECT_EQ(sizeof(RenderPassSize), sizeof(RenderPass));
 }
 
 }  // namespace
 }  // namespace cc