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

chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm

Index: chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm b/chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm
index 8708f3ab246951269980c5e38414b55b60b05ce5..d8d4a3eef202bac3055fb1d41f8ce77a1c9cd6d0 100644
--- a/chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm
+++ b/chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.mm
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.h"
 
+#include <utility>
+
 #import "chrome/browser/ui/cocoa/media_picker/desktop_media_picker_controller.h"
 
 DesktopMediaPickerCocoa::DesktopMediaPickerCocoa() {
@@ -19,12 +21,12 @@ void DesktopMediaPickerCocoa::Show(content::WebContents* web_contents,
                                    const base::string16& target_name,
                                    scoped_ptr<DesktopMediaList> media_list,
                                    const DoneCallback& done_callback) {
-  controller_.reset(
-      [[DesktopMediaPickerController alloc] initWithMediaList:media_list.Pass()
-                                                       parent:parent
-                                                     callback:done_callback
-                                                      appName:app_name
-                                                   targetName:target_name]);
+  controller_.reset([[DesktopMediaPickerController alloc]
+      initWithMediaList:std::move(media_list)
+                 parent:parent
+               callback:done_callback
+                appName:app_name
+             targetName:target_name]);
   [controller_ showWindow:nil];
 }