Add controlled setting indicators for content settings

chrome/app/policy/policy_templates.json

 {
 # policy_templates.json - Metafile for policy templates
 #
 # The content of this file is evaluated as a Python expression.
 #
 # This file is used as input to generate the following policy templates:
 # ADM, ADMX+ADML, MCX/plist and html documentation.
 #
 # Policy templates are user interface definitions or documents about the
 # policies that can be used to configure Chrome. Each policy is a name-value
@@ skipping 314 matching lines @@
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome.*:8-', 'chrome_os:0.11-'],
       'features': {'dynamic_refresh': True},
       'deprecated': True,
       'example_value': True,
       'id': 9,
       'caption': '''Enable JavaScript''',
       'desc': '''This policy is deprecated, please use DefaultJavaScriptSetting instead.
 
-      Enables JavaScript in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing this setting.
+      Can be used to disabled JavaScript in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
 
-      If this setting is enabled or not configured, web pages can use JavaScript.
+      If this setting is disabled, web pages cannot use JavaScript and the user cannot change that setting.
 
-      If this setting is disabled, web pages cannot use JavaScript.
-
-      If this policy is left not set the default value will be used which is enabled and the user will be able to change it.
-
-      If this policy is left not set, this will be enabled but the user will be able to change it.''',
+      If this setting is enabled or not set, web pages can use JavaScript but the user can change that setting.''',
     },
     {
       'name': 'IncognitoEnabled',
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome.*:11-', 'chrome_os:0.11-'],
       'features': {'dynamic_refresh': True},
       'deprecated': True,
       'example_value': False,
       'id': 10,
@@ skipping 2990 matching lines @@
       'desc': '''Text appended in parentheses to the policy name to indicate that it has been deprecated''',
       'text': 'deprecated',
     },
     'doc_recommended': {
       'desc': '''Text appended in parentheses next to the policies top-level container to indicate that those policies are of the Recommended level''',
       'text': 'Recommended',
     },
   },
   'placeholders': [],
 }