[blink] Unique pointers in Platform.h

third_party/WebKit/Source/modules/media_capabilities/MediaCapabilities.cpp

 // Copyright 2017 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 "modules/media_capabilities/MediaCapabilities.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
@@ skipping 119 matching lines @@
   ScriptPromise promise = resolver->Promise();
 
   if (!configuration.hasVideo() && !configuration.hasAudio()) {
     resolver->Reject(DOMException::Create(
         kSyntaxError,
         "The configuration dictionary has neither |video| nor |audio| "
         "specified and needs at least one of them."));
     return promise;
   }
 
-  WebMediaRecorderHandler* handler =
+  std::unique_ptr<WebMediaRecorderHandler> handler =
       Platform::Current()->CreateMediaRecorderHandler();
   if (!handler) {
     resolver->Reject(DOMException::Create(
         kInvalidStateError,
         "Platform error: could not create MediaRecorderHandler."));
     return promise;
   }
 
   handler->EncodingInfo(
       ToWebMediaConfiguration(configuration),
       WTF::MakeUnique<CallbackPromiseAdapter<MediaCapabilitiesInfo, void>>(
           resolver));
   return promise;
 }
 
 DEFINE_TRACE(MediaCapabilities) {}
 
 }  // namespace blink