Verify returned frames from media::VideoFrame::Wrap*() methods

media/video/gpu_memory_buffer_video_frame_pool_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 <stdint.h>
 
 #include "base/bind.h"
 #include "base/test/test_simple_task_runner.h"
 #include "gpu/command_buffer/client/gles2_interface_stub.h"
 #include "media/base/video_frame.h"
@@ skipping 54 matching lines @@
   static scoped_refptr<media::VideoFrame> CreateTestYUVVideoFrame(
       int dimension) {
     const int kDimension = 10;
     static uint8_t y_data[kDimension * kDimension] = {0};
     static uint8_t u_data[kDimension * kDimension / 2] = {0};
     static uint8_t v_data[kDimension * kDimension / 2] = {0};
 
     DCHECK_LE(dimension, kDimension);
     gfx::Size size(dimension, dimension);
 
-    return media::VideoFrame::WrapExternalYuvData(
-        media::PIXEL_FORMAT_YV12,  // format
-        size,                      // coded_size
-        gfx::Rect(size),           // visible_rect
-        size,                      // natural_size
-        size.width(),              // y_stride
-        size.width() / 2,          // u_stride
-        size.width() / 2,          // v_stride
-        y_data,                    // y_data
-        u_data,                    // u_data
-        v_data,                    // v_data
-        base::TimeDelta());        // timestamp
+    scoped_refptr<VideoFrame> video_frame =
+        media::VideoFrame::WrapExternalYuvData(
+            media::PIXEL_FORMAT_YV12,  // format
+            size,                      // coded_size
+            gfx::Rect(size),           // visible_rect
+            size,                      // natural_size
+            size.width(),              // y_stride
+            size.width() / 2,          // u_stride
+            size.width() / 2,          // v_stride
+            y_data,                    // y_data
+            u_data,                    // u_data
+            v_data,                    // v_data
+            base::TimeDelta());        // timestamp
+    EXPECT_NE(nullptr, video_frame.get());
+    return video_frame;
   }
 
  protected:
   scoped_ptr<MockGpuVideoAcceleratorFactories> mock_gpu_factories_;
   scoped_ptr<GpuMemoryBufferVideoFramePool> gpu_memory_buffer_pool_;
   scoped_refptr<base::TestSimpleTaskRunner> media_task_runner_;
   scoped_refptr<base::TestSimpleTaskRunner> copy_task_runner_;
   scoped_ptr<TestGLES2Interface> gles2_;
 };
 
@@ skipping 164 matching lines @@
   gpu_memory_buffer_pool_->MaybeCreateHardwareFrame(
       software_frame, base::Bind(MaybeCreateHardwareFrameCallback, &frame));
 
   RunUntilIdle();
 
   EXPECT_NE(software_frame.get(), frame.get());
   EXPECT_EQ(3u, gles2_->gen_textures);
 }
 
 }  // namespace media