Revert of [blink] Unique pointers in Platform.h

third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp

Index: third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp
diff --git a/third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp b/third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp
index 5aae73a7be1d9852af31ed65c9ff58454c4f8818..a507b3c660e9536c80904f668300fd88c60ed60d 100644
--- a/third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp
+++ b/third_party/WebKit/Source/modules/mediarecorder/MediaRecorder.cpp
@@ -173,7 +173,8 @@
           &MediaRecorder::DispatchScheduledEvent)) {
   DCHECK(stream_->getTracks().size());
 
-  recorder_handler_ = Platform::Current()->CreateMediaRecorderHandler();
+  recorder_handler_ =
+      WTF::WrapUnique(Platform::Current()->CreateMediaRecorderHandler());
   DCHECK(recorder_handler_);
 
   if (!recorder_handler_) {
@@ -283,7 +284,7 @@
 }
 
 bool MediaRecorder::isTypeSupported(const String& type) {
-  std::unique_ptr<WebMediaRecorderHandler> handler =
+  WebMediaRecorderHandler* handler =
       Platform::Current()->CreateMediaRecorderHandler();
   if (!handler)
     return false;