Add policy for fullscreen mode; disallow fullscreen in public sessions

chrome/app/policy/policy_templates.json

Index: chrome/app/policy/policy_templates.json
diff --git a/chrome/app/policy/policy_templates.json b/chrome/app/policy/policy_templates.json
index c4444fbad414893097100d43e71ec2f2e33a219a..ac141469820290503cbfdb4944bf11306040f60d 100644
--- a/chrome/app/policy/policy_templates.json
+++ b/chrome/app/policy/policy_templates.json
@@ -117,7 +117,7 @@
 #   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: 239
+#   For your editing convenience: highest ID currently used: 240
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -4243,6 +4243,24 @@
       The policy value should be specified in milliseconds. Values are clamped to a range of 30 seconds to 24 hours.''',
     },
     {
+      'name': 'FullscreenAllowed',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome.win:31-', 'chrome.linux:31-', 'chrome_os:31-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': True,
+      'id': 240,
+      'caption': '''Allow fullscreen mode''',
+      'desc': '''Allow fullscreen mode.
+
+      If this policy is set to true or not configured, the user and apps with appropriate permissions can enter fullscreen mode where all browser UI is hidden and only the browser content is visible.
+
+      If this policy is set to false, neither the user nor any apps can enter fullscreen mode.''',

[scheib, 2013/08/22 23:57:26]

user, apps, and extensions (presuming extensions are blocked as well, from the
implementation I expect them to be).

(see http://developer.chrome.com/extensions/windows.html state)

[bartfab (slow), 2013/08/23 11:54:21]

Done.

I verified that "chrome.windows.update();" is prevented from switching a window
into full screen and updated the documentation.

+    },
+    {
       'name': 'PowerManagement',
       'type': 'group',
       'caption': '''Power mangement''',