Implement two new policies to control muting the audio I/O.

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: 158
+#   For your editing convenience: highest ID currently used: 160
 #
 # 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 3016 matching lines @@
       'caption': '''Disable mounting of external storage''',
       'desc': '''Disable mounting of external storage.
 
       When this policy is set to true, external storage will not be available in the file browser.
 
       This policy affects all types of storage media. For example: USB flash drives, external hard drives, SD and other memory cards, optical storage etc. Internal storage is not affected, therefore files saved in the Download folder can still be accessed. Google Drive is also not affected by this policy.
 
       If this setting is disabled or not configured then users can use all supported types of external storage on their device.''',
     },
     {
+      'name': 'AudioOutputAllowed',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome_os:0.23-'],
+      'features': {'dynamic_refresh': True},
+      'example_value': False,
+      'id': 159,
+      'caption': '''Allow playing audio''',
+      'desc': '''Allow playing audio.
+
+      When this policy is set to false, audio output will not be available on the device while the user is logged in.
+
+      This policy affects all types of audio output and not only the built-in speakers. Audio accessability features are also inhibited by this policy. Do not enable this policy if a screen reader is required for the user.
+
+      If this setting is set to true or not configured then users can use all supported audio outputs on their device.''',
+    },
+    {
+      'name': 'AudioCaptureAllowed',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome_os:0.23-'],
+      'features': {'dynamic_refresh': True},
+      'example_value': False,
+      'id': 160,
+      'caption': '''Allow capturing audio''',
+      'desc': '''Allow capturing audio.
+
+      When this policy is set to false, audio capturing will not be available on the device while the user is logged in.
+
+      This policy affects all types of audio inputs and not only the built-in microphone.
+
+      If this setting is set to true or not configured then users can use all supported audio inputs on their device.''',
+    },
+    {
       'name': 'DisableScreenshots',
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome_os:22-', 'chrome.*:22-'],
       'features': {
         'dynamic_refresh': True,
       },
       'example_value': True,
       'id': 153,
       'caption': '''Disable taking screenshots''',
@@ skipping 112 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': [],
 }