Convert Pass()→std::move() for Mac build.

media/capture/video/mac/video_capture_device_factory_mac.mm

Index: media/capture/video/mac/video_capture_device_factory_mac.mm
diff --git a/media/capture/video/mac/video_capture_device_factory_mac.mm b/media/capture/video/mac/video_capture_device_factory_mac.mm
index 2098f3eeeb0ebc8857b53905ba9715d13c1bd84a..5d92f7eb12c9b2c6d0d5616090d8e97d54ab9ea7 100644
--- a/media/capture/video/mac/video_capture_device_factory_mac.mm
+++ b/media/capture/video/mac/video_capture_device_factory_mac.mm
@@ -7,6 +7,8 @@
 #import <IOKit/audio/IOAudioTypes.h>
 #include <stddef.h>
 
+#include <utility>
+
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/macros.h"
@@ -68,7 +70,7 @@ EnumerateDevicesUsingQTKit() {
       name.set_is_blacklisted(true);
     device_names->push_back(name);
   }
-  return device_names.Pass();
+  return device_names;
 }
 
 static void RunDevicesEnumeratedCallback(
@@ -80,7 +82,7 @@ static void RunDevicesEnumeratedCallback(
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "458397 media::RunDevicesEnumeratedCallback"));
-  callback.Run(device_names.Pass());
+  callback.Run(std::move(device_names));
 }
 
 VideoCaptureDeviceFactoryMac::VideoCaptureDeviceFactoryMac(
@@ -109,7 +111,7 @@ scoped_ptr<VideoCaptureDevice> VideoCaptureDeviceFactoryMac::Create(
       capture_device.reset();
     }
   }
-  return scoped_ptr<VideoCaptureDevice>(capture_device.Pass());
+  return scoped_ptr<VideoCaptureDevice>(std::move(capture_device));
 }
 
 void VideoCaptureDeviceFactoryMac::GetDeviceNames(
@@ -158,7 +160,7 @@ void VideoCaptureDeviceFactoryMac::EnumerateDeviceNames(const base::Callback<
     scoped_ptr<VideoCaptureDevice::Names> device_names(
         new VideoCaptureDevice::Names());
     GetDeviceNames(device_names.get());
-    callback.Run(device_names.Pass());
+    callback.Run(std::move(device_names));
   } else {
     DVLOG(1) << "Enumerating video capture devices using QTKit";
     base::PostTaskAndReplyWithResult(