Add a policy to hide the Web Store on new tabs.

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 94 matching lines @@
 #   templates and documentation. The policy definition list that Chrome sees
 #   will include policies marked with 'future'. If a WIP policy isn't meant to
 #   be seen by the policy providers either, the 'supported_on' key should be set
 #   to an empty list.
 #
 # IDs:
 #   Since a Protocol Buffer definition is generated from this file, unique and
 #   persistent IDs for all fields (but not for groups!) are needed. These are
 #   specified by the 'id' keys of each policy. NEVER CHANGE EXISTING IDs,
 #   because doing so would break the deployed wire format!
-#   For your editing convenience: highest ID currently used: 171
+#   For your editing convenience: highest ID currently used: 172
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
 #     $1 -> Google Chrome / Chromium
 #     $2 -> Google Chrome OS / Chromium OS
 #     $3 -> Google Chrome Frame / Chromium Frame
 #     $6 is reserved for doc_writer
 #
 # Device Policy:
 #   An additional flag device_only (optional, defaults to False) indicates
@@ skipping 3743 matching lines @@
       'desc': '''Limit the maximum length of a user session.
 
       When this policy is set, it specifies the length of time after which a user is automatically logged out, terminating the session. The user is informed about the remaining time by a countdown timer shown in the system tray.
 
       When this policy is not set, the session length is not limited.
 
       If you set this policy, users cannot change or override it.
 
       The policy value should be specified in milliseconds. Values are clamped to a range of 30 seconds to 24 hours.''',
     },
+    {
+      'name': 'HideWebStoreIcon',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome.*:26-'],

[dconnelly, 2013/01/18 13:11:55]

Not sure what version to use here

[Joao da Silva, 2013/01/18 14:02:50]

26 is fine. This also affects the NTP on chromeos, but chromeos also shows the
webstore icon on the launcher. I'd leave that for a subsequent CL, and then we
can change this version.

+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': False,

[Joao da Silva, 2013/01/18 14:02:50]

per_profile is True. This pref is stored per profile, so it's possible to have
multiple profiles with different settings each for this.

+      },
+      'future': False,

[Joao da Silva, 2013/01/18 14:02:50]

This can be removed

+      'example_value': True,
+      'id': 172,
+      'caption': '''Hide the web store from the new tab page''',
+      'desc': '''Hide the Chrome Web Store icons from the New Tab Page.
+
+      When this policy is set to true, the icons are hidden.
+
+      When this policy is set to false or is not configured, the icons are visible.''',
+    },
   ],
   'messages': {
     # Messages that are not associated to any policies.
     'win_supported_winxpsp2': {
       'desc': '''A label specifying the oldest possible compatible version of Windows. This text will appear right next to a label containing the text 'Supported on:'.''',
       'text': '''Microsoft Windows XP SP2 or later'''
     },
     'mac_chrome_preferences': {
       'desc': '''A text indicating in Mac OS X Workgroup Manager, that currently the preferences of Chrome are being edited''',
       'text': '''<ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> preferences'''
@@ skipping 82 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': [],
 }