Switch WebRTC recipe to Git.

BUG=412012

Review URL: https://codereview.chromium.org/765373002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294546 0039d316-1c4b-4281-b951-d872f2087c98

recipes/webrtc.py

@@ -26,7 +26,6 @@ class WebRTC(recipe_util.Recipe):
           'safesync_url': '',
         },
       ],
-      'auto': True,  # Runs git auto-svn as a part of the fetch.
       'with_branch_heads': True,
     }
 
@@ -34,8 +33,8 @@ class WebRTC(recipe_util.Recipe):
       spec['target_os'] = props['target_os'].split(',')
 
     return {
-      'type': 'gclient_git_svn',
+      'type': 'gclient_git',
-      'gclient_git_svn_spec': spec,
+      'gclient_git_spec': spec,
     }
 
   @staticmethod