Fix setting a proxy configuration via policy that specifies a .pac file.

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 176 matching lines @@
         'example_value': True,
       }
     },
     {
       'name': 'MetricsReportingEnabled',
       'type': 'main',
       'supported_on': ['chrome.*:8-'],
       'annotations': {
         'features': {'dynamic_refresh': 0},
         'example_value': True,
-        'problem_href':
-          'http://www.chromium.org/administrators/'
-          'policy-list-3/metrics-reporting-enabled',
       }
     },
     {
       'name': 'PasswordManager',
       'type': 'group',
       'policies': [{
         'name': 'PasswordManagerEnabled',
         'type': 'main',
         'supported_on': ['chrome.*:8-'],
         'annotations': {
@@ skipping 470 matching lines @@
     {
       'key': '$4',
       'value': 'http://www.chromium.org/developers/how-tos/chrome-frame-getting-started'
     },
     {
       'key': '$5',
       'value': 'http://www.chromium.org/administrators/policy-templates'
     },
   ]
 }