Enforce constant size and device scale factor for surfaces

cc/surfaces/direct_compositor_frame_sink_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 "cc/surfaces/direct_compositor_frame_sink.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "cc/output/renderer_settings.h"
 #include "cc/output/texture_mailbox_deleter.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/scheduler/delay_based_time_source.h"
 #include "cc/surfaces/display.h"
 #include "cc/surfaces/display_scheduler.h"
 #include "cc/surfaces/frame_sink_id.h"
 #include "cc/surfaces/local_surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/test/begin_frame_args_test.h"
+#include "cc/test/compositor_frame_helpers.h"
 #include "cc/test/fake_compositor_frame_sink_client.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_gpu_memory_buffer_manager.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
@@ skipping 71 matching lines @@
   }
 
   ~DirectCompositorFrameSinkTest() override {
     compositor_frame_sink_->DetachFromClient();
   }
 
   void SwapBuffersWithDamage(const gfx::Rect& damage_rect) {
     std::unique_ptr<RenderPass> render_pass(RenderPass::Create());
     render_pass->SetNew(1, display_rect_, damage_rect, gfx::Transform());
 
-    CompositorFrame frame;
+    CompositorFrame frame = test::MakeEmptyCompositorFrame();
     frame.metadata.begin_frame_ack = BeginFrameAck(0, 1, 1, true);
     frame.render_pass_list.push_back(std::move(render_pass));
 
     compositor_frame_sink_->SubmitCompositorFrame(std::move(frame));
   }
 
   void SetUp() override {
     // Draw the first frame to start in an "unlocked" state.
     SwapBuffersWithDamage(display_rect_);
 
@@ skipping 82 matching lines @@
       &observer, observer.ack());
   compositor_frame_sink_->DidNotProduceFrame(observer.ack());
   compositor_frame_sink_client_.begin_frame_source()->RemoveObserver(&observer);
 
   // Verify that the frame sink acknowledged the last BeginFrame.
   EXPECT_EQ(observer.ack(), begin_frame_source_->last_ack());
 }
 
 }  // namespace
 }  // namespace cc