Add search_terms_replacement_key field to TemplateURL.

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: 170
+#   For your editing convenience: highest ID currently used: 171
 #
 # 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 1659 matching lines @@
           },
           'example_value': ['http://search.my.company/suggest#q={searchTerms}', 'http://search.my.company/suggest/search#q={searchTerms}'],
           'id': 161,
           'caption': '''List of alternate URLs for the default search provider.''',
           'desc': '''Specifies a list of alternate URLs that can be used to extract search terms from the search engine. The URLs should contain the string <ph name="SEARCH_TERM_MARKER">'{searchTerms}'</ph>, which will be used to extract the search terms.
 
           This policy is optional. If not set, no alternate urls will be used to extract search terms.
 
           This policy is only respected if the 'DefaultSearchProviderEnabled' policy is enabled.''',
         },
+        {
+          'name': 'DefaultSearchProviderSearchTermsReplacementKey',
+          'type': 'string',
+          'schema': { 'type': 'string' },
+          'supported_on': ['chrome.*:25-', 'chrome_os:0.25-'],
+          'features': {
+            'dynamic_refresh': True,
+            'per_profile': True,
+          },
+          'example_value': 'espv',
+          'id': 171,
+          'caption': '''Parameter controlling search term placement for the default search provider.''',
+          'desc': '''A parameter that, if present in the query or ref parameter of a search URL, indicates that Chrome should perform search terms replacement in the omnibox.
+
+          This policy is optional. If not set, no search term replacement will be performed.
+
+          This policy is only respected if the 'DefaultSearchProviderEnabled' policy is enabled.''',
+        },
       ],
     },
     {
       # TODO(joaodasilva): Flag these policies with 'can_be_recommended'
       # after fixing http://crbug.com/106682
       'name': 'ContentSettings',
       'type': 'group',
       'caption': '''Content Settings''',
       'desc': '''Content Settings allow you to specify how contents of a specific type (for example Cookies, Images or JavaScript) is handled.''',
       'policies': [
@@ skipping 2148 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': [],
 }