Revert of [blink] Unique pointers in Platform.h

content/renderer/media_capture_from_element/canvas_capture_handler.cc

Index: content/renderer/media_capture_from_element/canvas_capture_handler.cc
diff --git a/content/renderer/media_capture_from_element/canvas_capture_handler.cc b/content/renderer/media_capture_from_element/canvas_capture_handler.cc
index 65935ec0381b7bc19d5409250ccd74c4e2428251..b8b9d73736dbfa4f19739373b46ee2caa451b595 100644
--- a/content/renderer/media_capture_from_element/canvas_capture_handler.cc
+++ b/content/renderer/media_capture_from_element/canvas_capture_handler.cc
@@ -141,8 +141,7 @@
 }
 
 // static
-std::unique_ptr<CanvasCaptureHandler>
-CanvasCaptureHandler::CreateCanvasCaptureHandler(
+CanvasCaptureHandler* CanvasCaptureHandler::CreateCanvasCaptureHandler(
     const blink::WebSize& size,
     double frame_rate,
     const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
@@ -151,8 +150,7 @@
   // The histogram counts the number of calls to the JS API.
   UpdateWebRTCMethodCount(WEBKIT_CANVAS_CAPTURE_STREAM);
 
-  return std::unique_ptr<CanvasCaptureHandler>(
-      new CanvasCaptureHandler(size, frame_rate, io_task_runner, track));
+  return new CanvasCaptureHandler(size, frame_rate, io_task_runner, track);
 }
 
 void CanvasCaptureHandler::SendNewFrame(const SkImage* image) {