Add a policy list for access to capture devices

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: 207
+#   For your editing convenience: highest ID currently used: 209
 #
 # 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 3660 matching lines @@
 
       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.*:25-', 'chrome_os:0.23-'],
       'features': {
         'dynamic_refresh': True,
-        'per_profile': False,
+        'per_profile': True,
       },
       'example_value': False,
       'id': 160,
       'caption': '''Allow or deny audio capture''',
       'desc': '''Allow or deny audio capture.
 
-      When this policy is disabled, audio capture will not be available.  If enabled, audio capture will always be allowed.
-      If the policy is not configured (default), the user will be prompted for audio capture device access.
+      If enabled or not configured (default), the user will be prompted for
+      audio capture access except for URLs configured in the
+      AudioCaptureAllowedUrls list which will be granted access without prompting.
+
+      When this policy is disabled, the user will never be prompted and audio
+      capture only be available to URLs configured in AudioCaptureAllowedUrls.
 
       This policy affects all types of audio inputs and not only the built-in microphone.''',
     },
     {
+      'name': 'AudioCaptureAllowedUrls',
+      'type': 'list',
+      'schema': {
+        'type': 'array',
+        'items': { 'type': 'string' },
+      },
+      'supported_on': ['chrome.*:29-', 'chrome_os:0.29-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': ['http://www.example.com/', 'http://[*.]example.edu/'],
+      'id': 208,
+      'caption': '''URLs that will be granted access to audio capture devices without prompt.''',
+      'desc': '''Patterns in this list will be matched against the security
+      origin of the requesting URL.  If a match is found, access to audio
+      capture devices will be granted without prompt.''',
+    },
+    {
       'name': 'VideoCaptureAllowed',
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome.*:25-', 'chrome_os:0.25-'],
       'features': {
         'dynamic_refresh': True,
-        'per_profile': False,
+        'per_profile': True,
       },
       'example_value': False,
       'id': 167,
       'caption': '''Allow or deny video capture''',
       'desc': '''Allow or deny video capture.
 
-      When this policy is disabled, video capture devices will not be available.  If enabled, video capture will always be allowed.
-      If the policy is not configured (default), the user will be prompted for video device access.
+      If enabled or not configured (default), the user will be prompted for
+      video capture access except for URLs configured in the
+      VideoCaptureAllowedUrls list which will be granted access without prompting.
+
+      When this policy is disabled, the user will never be prompted and video
+      capture only be available to URLs configured in VideoCaptureAllowedUrls.
 
       This policy affects all types of video inputs and not only the built-in camera.''',
     },
     {
+      'name': 'VideoCaptureAllowedUrls',
+      'type': 'list',
+      'schema': {
+        'type': 'array',
+        'items': { 'type': 'string' },
+      },
+      'supported_on': ['chrome.*:29-', 'chrome_os:0.29-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': ['http://www.example.com/', 'http://[*.]example.edu/'],
+      'id': 209,
+      'caption': '''URLs that will be granted access to video capture devices without prompt.''',
+      'desc': '''Patterns in this list will be matched against the security
+      origin of the requesting URL.  If a match is found, access to audio
+      capture devices will be granted without prompt.''',
+    },
+    {
       'name': 'DisableScreenshots',
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome_os:22-', 'chrome.*:22-'],
       'features': {
         'dynamic_refresh': True,
         'per_profile': False,
       },
       'example_value': True,
       'id': 153,
@@ skipping 974 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': [],
 }