[blink] Unique pointers in Platform.h

content/shell/test_runner/web_test_interfaces.h

Index: content/shell/test_runner/web_test_interfaces.h
diff --git a/content/shell/test_runner/web_test_interfaces.h b/content/shell/test_runner/web_test_interfaces.h
index 64ce164acfdfb0a56e3c54ae77e2e78e024dc612..f6f7975ed5f0e19d8e22118182bc005740b54b9e 100644
--- a/content/shell/test_runner/web_test_interfaces.h
+++ b/content/shell/test_runner/web_test_interfaces.h
@@ -53,16 +53,18 @@ class TEST_RUNNER_EXPORT WebTestInterfaces {
   WebTestRunner* TestRunner();
   blink::WebThemeEngine* ThemeEngine();
 
-  blink::WebMediaStreamCenter* CreateMediaStreamCenter(
+  std::unique_ptr<blink::WebMediaStreamCenter> CreateMediaStreamCenter(
       blink::WebMediaStreamCenterClient* client);
-  blink::WebRTCPeerConnectionHandler* CreateWebRTCPeerConnectionHandler(
+  std::unique_ptr<blink::WebRTCPeerConnectionHandler>
+  CreateWebRTCPeerConnectionHandler(
       blink::WebRTCPeerConnectionHandlerClient* client);
 
-  blink::WebMIDIAccessor* CreateMIDIAccessor(
+  std::unique_ptr<blink::WebMIDIAccessor> CreateMIDIAccessor(
       blink::WebMIDIAccessorClient* client);
 
-  blink::WebAudioDevice* CreateAudioDevice(double sample_rate,
-                                           int frames_per_buffer);
+  std::unique_ptr<blink::WebAudioDevice> CreateAudioDevice(
+      double sample_rate,
+      int frames_per_buffer);
 
   TestInterfaces* GetTestInterfaces();