Update the Blink recipe to use 'webkit_revision' instead of 'webkit_rev'

With the deletion of .DEPS.git, 'webkit_rev' became 'webkit_revision':
https://codereview.chromium.org/497313003

Without this change, gclient sync will not get the latest Blink commit.

Review URL: https://codereview.chromium.org/496443005

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@291716 0039d316-1c4b-4281-b951-d872f2087c98

git-crup

@@ -35,7 +35,7 @@ solutions = [{
   'managed': False,
   'deps_file': '.DEPS.git',
   # Uncomment the following if you're doing blink development
-  # 'custom_vars': {'webkit_rev': ''},
+  # 'custom_vars': {'webkit_revision': ''},
 }]
 # ======== .gclient ends =========
 

recipes/blink.py

@@ -26,7 +26,7 @@ class Blink(recipe_util.Recipe):
       'alias': {
         'recipe': 'chromium',
         'props': [
-          '--webkit_rev=ToT',
+          '--webkit_revision=ToT',
           '--submodule_git_svn_spec=' + json.dumps(submodule_spec),
         ],
       },

recipes/chromium.py

@@ -22,8 +22,8 @@ class Chromium(recipe_util.Recipe):
                  'custom_deps': {},
                  'safesync_url': '',
     }
-    if props.get('webkit_rev', '') == 'ToT':
-      solution['custom_vars'] = {'webkit_rev': ''}
+    if props.get('webkit_revision', '') == 'ToT':
+      solution['custom_vars'] = {'webkit_revision': ''}
     spec = {
       'solutions': [solution],
     }