Add policy templates for URL filtering on WebView

components/policy/resources/policy_templates.json

Index: components/policy/resources/policy_templates.json
diff --git a/components/policy/resources/policy_templates.json b/components/policy/resources/policy_templates.json
index b9c578cbe3e76439419dd29d3ae7bf414db9f72b..38e9ca30ac1e254a5b2a42516e3719bf769afa98 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -4161,6 +4161,7 @@
         'chrome.*:15-',
         'chrome_os:15-',
         'android:30-',
+        'webview_android:47-',
         'ios:34-',
       ],
       'features': {
@@ -4198,6 +4199,7 @@
         'chrome.*:15-',
         'chrome_os:15-',
         'android:30-',
+        'webview_android:47-',
         'ios:34-',
       ],
       'features': {
@@ -8027,6 +8029,10 @@
       'desc': '''Caption text of the field 'android restriction name' in the summary chart of a policy in the generated documentation''',
       'text': '''Android restriction name:'''
     },
+    'doc_android_webview_restriction_name': {
+      'desc': '''Caption text of the field 'android webview restriction name' in the summary chart of a policy in the generated documentation''',
+      'text': '''Android WebView restriction name:'''
+    },
     'doc_supported_on': {
       'desc': '''Caption text of the list of 'products, platforms and versions where this policy is supported' in the summary chart of a policy in the generated documentation''',
       'text': '''Supported on:'''