Revert of Delete method cricket::VideoFrame::Copy.

webrtc/media/engine/webrtcvideoframe_unittest.cc

Index: webrtc/media/engine/webrtcvideoframe_unittest.cc
diff --git a/webrtc/media/engine/webrtcvideoframe_unittest.cc b/webrtc/media/engine/webrtcvideoframe_unittest.cc
index 9d6bd5f7b5c4e6c116259422cdb269063c49d22b..fb7be22c537cb55c4f4d0907f0e5670c784721be 100644
--- a/webrtc/media/engine/webrtcvideoframe_unittest.cc
+++ b/webrtc/media/engine/webrtcvideoframe_unittest.cc
@@ -223,6 +223,9 @@
 // TEST_WEBRTCVIDEOFRAME(ConvertToI422Buffer)
 // TEST_WEBRTCVIDEOFRAME(ConstructARGBBlackWhitePixel)
 
+TEST_WEBRTCVIDEOFRAME(Copy)
+TEST_WEBRTCVIDEOFRAME(CopyIsRef)
+
 // These functions test implementation-specific details.
 // Tests the Init function with different cropped size.
 TEST_F(WebRtcVideoFrameTest, InitEvenSize) {
@@ -267,6 +270,24 @@
   EXPECT_EQ(40, frame.timestamp_us());
 }
 
+TEST_F(WebRtcVideoFrameTest, CopyTextureFrame) {
+  webrtc::test::FakeNativeHandle* dummy_handle =
+      new webrtc::test::FakeNativeHandle();
+  webrtc::NativeHandleBuffer* buffer =
+      new rtc::RefCountedObject<webrtc::test::FakeNativeHandleBuffer>(
+          dummy_handle, 640, 480);
+  // Timestamp is converted from ns to us, so last three digits are lost.
+  WebRtcVideoFrame frame1(buffer, 20000, webrtc::kVideoRotation_0);
+  VideoFrame* frame2 = frame1.Copy();
+  EXPECT_EQ(frame1.video_frame_buffer()->native_handle(),
+            frame2->video_frame_buffer()->native_handle());
+  EXPECT_EQ(frame1.width(), frame2->width());
+  EXPECT_EQ(frame1.height(), frame2->height());
+  EXPECT_EQ(frame1.GetTimeStamp(), frame2->GetTimeStamp());
+  EXPECT_EQ(frame1.timestamp_us(), frame2->timestamp_us());
+  delete frame2;
+}
+
 TEST_F(WebRtcVideoFrameTest, ApplyRotationToFrame) {
   WebRtcVideoFrame applied0;
   EXPECT_TRUE(IsNull(applied0));