This cl adds a C++ counterpart of the Java SurfaceTextureHandler. It can be used for creating a webrtc::VideoFrames from a native handle and also guarantee that the Java SurfaceTexture is notified when the VideoFrame is no longer in use. BUG=webrtc:4993 R=magjed@webrtc.org Review URL: https://codereview.webrtc.org/1366413003 . Cr-Commit-Position: refs/heads/master@{#10084}