Generate example JSON policy configuration files

chrome/app/policy/policy_templates.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that are used in policy
 templates and will be translated for each locale. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="app/policy/windows/admx/chrome.admx" type="admx" lang="en" />
     <output filename="app/policy/windows/admx/en-US/chrome.adml" type="adml" lang="en" />
     <output filename="app/policy/common/html/chrome_policy_list.html" type="doc" lang="en" />
     <output filename="app/policy/windows/adm/en-US/chrome.adm" type="adm" lang="en" />
+    <output filename="app/policy/linux/chrome.json" type="json" lang="en" />
 
     <if expr="os == 'darwin'">
       <output filename="app/policy/mac/app-Manifest.plist" type="plist" lang="en" />
       <!-- The following directory names use Mac language codes (en instead of en-US,
            underscores instead of dashes. (As described in build/apply_locales.py -->
       <output filename="app/policy/mac/strings/en.lproj/Localizable.strings" type="plist_strings" lang="en" />
    </if>
 
   </outputs>
   <translations>
@@ skipping 147 matching lines @@
       Enables DNS prefetching in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing this setting.
 
       If you enable or disable this setting, users cannot change or override this setting in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
     </message>
 
     <message name="IDS_POLICY_DISABLESPDY_CAPTION" desc="Caption of the 'Disable SPDY' policy.">
       Disable SPDY protocol
     </message>
     <message name="IDS_POLICY_DISABLESPDY_DESC" desc="Description of the 'Disable SPDY' policy.">
       Disables use of the SPDY protocol in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
-    </message>      
+    </message>
 
     <message name="IDS_POLICY_JAVASCRIPTENABLED_CAPTION" desc="Caption of the 'JavaScript enabled' policy settings page.">
       Enable JavaScript
     </message>
     <message name="IDS_POLICY_JAVASCRIPTENABLED_DESC" desc="Description of the 'JavaScript enabled' policy settings page.">
       Enables JavaScript in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing this setting.
 
       If this setting is enabled or not configured, web pages can use JavaScript.
 
       If this setting is disabled, web pages cannot use JavaScript.
@@ skipping 503 matching lines @@
       Policy Name
     </message>
     <message name="IDS_POLICY_DOC_DESCRIPTION_COLUMN_TITLE"
              desc="Appears at the top of the policy summary table, over the column of short policy descriptions, in the generated policy documentation">
       Description
     </message>
     <!-- End of generated documentation messages  -->
     </messages>
   </release>
 </grit>