exo: Recreate Surface resources on context lost.

components/exo/surface_unittest.cc

 // Copyright 2015 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 "base/bind.h"
+#include "cc/output/compositor_frame.h"
+#include "cc/output/delegated_frame_data.h"
+#include "cc/surfaces/surface.h"
+#include "cc/surfaces/surface_manager.h"
 #include "components/exo/buffer.h"
 #include "components/exo/surface.h"
 #include "components/exo/test/exo_test_base.h"
 #include "components/exo/test/exo_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/env.h"
 #include "ui/compositor/layer_tree_owner.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/wm/core/window_util.h"
 
 namespace exo {
 namespace {
 
 using SurfaceTest = test::ExoTestBase;
 
 void ReleaseBuffer(int* release_buffer_call_count) {
@@ skipping 154 matching lines @@
 
   surface->Attach(buffer.get());
   gfx::Size crop_size(12, 12);
   surface->SetCrop(gfx::RectF(gfx::PointF(2.0, 2.0), gfx::SizeF(crop_size)));
   surface->Commit();
   EXPECT_EQ(crop_size.ToString(),
             surface->window()->bounds().size().ToString());
   EXPECT_EQ(crop_size.ToString(), surface->content_size().ToString());
 }
 
+const cc::DelegatedFrameData* GetFrameFromSurface(Surface* surface) {
+  cc::SurfaceId surface_id = surface->surface_id();
+  cc::SurfaceManager* surface_manager =
+      aura::Env::GetInstance()->context_factory()->GetSurfaceManager();
+  const cc::CompositorFrame* frame =
+      surface_manager->GetSurfaceForId(surface_id)->GetEligibleFrame();
+  return frame->delegated_frame_data.get();
+}
+
 TEST_F(SurfaceTest, SetBlendMode) {
   gfx::Size buffer_size(1, 1);
   std::unique_ptr<Buffer> buffer(
       new Buffer(exo_test_helper()->CreateGpuMemoryBuffer(buffer_size)));
   std::unique_ptr<Surface> surface(new Surface);
 
   surface->Attach(buffer.get());
   surface->SetBlendMode(SkXfermode::kSrc_Mode);
   surface->Commit();
 
-  EXPECT_TRUE(surface->window()->layer()->fills_bounds_opaquely());
+  EXPECT_FALSE(surface->window()->layer()->fills_bounds_opaquely());
+
+  const cc::DelegatedFrameData* frame_data = GetFrameFromSurface(surface.get());
+  ASSERT_EQ(1u, frame_data->render_pass_list.size());
+  ASSERT_EQ(1u, frame_data->render_pass_list.back()->quad_list.size());
+  EXPECT_FALSE(frame_data->render_pass_list.back()
+                   ->quad_list.back()
+                   ->ShouldDrawWithBlending());

[reveman, 2016/06/23 00:44:39]

Thanks for doing this

 }
 
 TEST_F(SurfaceTest, SetAlpha) {
   gfx::Size buffer_size(1, 1);
   std::unique_ptr<Buffer> buffer(
       new Buffer(exo_test_helper()->CreateGpuMemoryBuffer(buffer_size)));
   std::unique_ptr<Surface> surface(new Surface);
 
   surface->Attach(buffer.get());
   surface->SetAlpha(0.5f);
   surface->Commit();
 }
 
 TEST_F(SurfaceTest, Commit) {
   std::unique_ptr<Surface> surface(new Surface);
 
   // Calling commit without a buffer should succeed.
   surface->Commit();
 }
 
 }  // namespace
 }  // namespace exo