Disable the Developer Tools when Javascript is disabled.

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 921 matching lines @@
     {
       'name': 'DeveloperToolsDisabled',
       'type': 'main',
       'supported_on': ['chrome.*:9-', 'chrome_os:0.11-'],
       'features': {'dynamic_refresh': 1},
       'example_value': False,
       'id': 36,
       'caption': '''Disable Developer Tools''',
       'desc': '''Disables the Developer Tools and the JavaScript console.
 
-      If you enable this setting, the Developer Tools can not be accessed and web-site elements can not be inspected anymore. Any keyboard shortcuts and any menu or context menu entries to open the Developer Tools or the JavaScript Console will be disabled.''',
+      If you enable this setting, the Developer Tools can not be accessed and web-site elements can not be inspected anymore. Any keyboard shortcuts and any menu or context menu entries to open the Developer Tools or the JavaScript Console will be disabled.
+
+      The Developer Tools are always disabled if Javascript is disabled by other policies.''',
     },
     {
       'name': 'RestoreOnStartupGroup',
       'type': 'group',
       'caption': '''Startup pages''',
       'desc': '''Allows you to configure the pages that are loaded on startup.
 
       The contents of the list 'URLs to open at startup' are ignored unless you select 'Open a list of URLs' in 'Action on startup'.''',
       'policies': [
         {
@@ skipping 977 matching lines @@
       'desc': '''The name of the feature that indicates for a given policy that changes to it are respected by Chrome without a browser restart''',
       'text': '''Dynamic Policy Refresh'''
     },
     'doc_deprecated': {
       'desc': '''Text appended in parentheses to the policy name to indicate t hat it has been deprecated''',
       'text': 'deprecated',
     }
   },
   'placeholders': [],
 }