Update the description for DriveDisabled to clarify its purpose.

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 3608 matching lines @@
           'name': 'DriveDisabled',
           'type': 'main',
           'schema': { 'type': 'boolean' },
           'supported_on': ['chrome_os:19-'],
           'features': {
             'dynamic_refresh': True,
             'per_profile': True,
           },
           'example_value': True,
           'id': 139,
-          'caption': '''Disables Drive''',
-          'desc': '''Disables Google Drive syncing when set to True. In that case, no data is uploaded to Google Drive.
+          'caption': '''Disables Drive in the Chrome OS Files app''',
+          'desc': '''Disables Google Drive syncing in the Chrome OS Files app when set to True. In that case, no data is uploaded to Google Drive.
 
           If not set or set to False, then users will be able to transfer files to Google Drive.''',
         },
         {
           'name': 'DriveDisabledOverCellular',
           'type': 'main',
           'schema': { 'type': 'boolean' },
           'supported_on': ['chrome_os:19-'],
           'features': {
             'dynamic_refresh': True,
             'per_profile': True,
           },
           'example_value': True,
           'id': 140,
-          'caption': '''Disables Google Drive over Cellular connections''',
-          'desc': '''Disables Google Drive syncing when using a cellular connection when set to True. In that case, data is only synced to Google Drive when connected via WiFi or Ethernet.
+          'caption': '''Disables Google Drive over Cellular connections in the Chrome OS Files app''',
+          'desc': '''Disables Google Drive syncing in the Chrome OS Files app when using a cellular connection when set to True. In that case, data is only synced to Google Drive when connected via WiFi or Ethernet.
 
           If not set or set to False, then users will be able to transfer files to Google Drive via cellular connections.''',
         },
       ],
     },
     {
       'name': 'PinnedLauncherApps',
       'type': 'list',
       'schema': {
         'type': 'array',
@@ skipping 940 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': 'Default Settings (users can override)',
     },
   },
   'placeholders': [],
 }