Reland: Communicate ExtensionSettings policy to renderers

extensions/common/extension_messages.h

Index: extensions/common/extension_messages.h
diff --git a/extensions/common/extension_messages.h b/extensions/common/extension_messages.h
index f7952e80e21ca0d0e2b1033c3c96f572add242d4..456bff16c9a413ecdfb70f36f8bca2d385d0b0dc 100644
--- a/extensions/common/extension_messages.h
+++ b/extensions/common/extension_messages.h
@@ -321,6 +321,14 @@ struct ExtensionMsg_Loaded_Params {
   ExtensionMsg_PermissionSetStruct withheld_permissions;
   std::map<int, ExtensionMsg_PermissionSetStruct> tab_specific_permissions;
 
+  // Contains URLPatternSets defining which URLs an extension may not interact
+  // with by policy.
+  extensions::URLPatternSet policy_blocked_hosts;
+  extensions::URLPatternSet policy_allowed_hosts;
+
+  // If the extension uses the default list of blocked / allowed URLs.
+  bool uses_default_policy_blocked_allowed_hosts = true;
+
   // We keep this separate so that it can be used in logging.
   std::string id;
 
@@ -442,6 +450,15 @@ IPC_STRUCT_BEGIN(ExtensionMsg_UpdatePermissions_Params)
   IPC_STRUCT_MEMBER(std::string, extension_id)
   IPC_STRUCT_MEMBER(ExtensionMsg_PermissionSetStruct, active_permissions)
   IPC_STRUCT_MEMBER(ExtensionMsg_PermissionSetStruct, withheld_permissions)
+  IPC_STRUCT_MEMBER(extensions::URLPatternSet, policy_blocked_hosts)
+  IPC_STRUCT_MEMBER(extensions::URLPatternSet, policy_allowed_hosts)
+  IPC_STRUCT_MEMBER(bool, uses_default_policy_host_restrictions)
+IPC_STRUCT_END()
+
+// Parameters structure for ExtensionMsg_UpdateDefaultPolicyHostRestrictions.
+IPC_STRUCT_BEGIN(ExtensionMsg_UpdateDefaultPolicyHostRestrictions_Params)
+  IPC_STRUCT_MEMBER(extensions::URLPatternSet, default_policy_blocked_hosts)
+  IPC_STRUCT_MEMBER(extensions::URLPatternSet, default_policy_allowed_hosts)
 IPC_STRUCT_END()
 
 // Messages sent from the browser to the renderer:
@@ -548,6 +565,10 @@ IPC_MESSAGE_ROUTED1(ExtensionMsg_SetTabId,
 IPC_MESSAGE_CONTROL1(ExtensionMsg_UpdatePermissions,
                      ExtensionMsg_UpdatePermissions_Params)
 
+// Tell the renderer to update an extension's policy_blocked_hosts set.
+IPC_MESSAGE_CONTROL1(ExtensionMsg_UpdateDefaultPolicyHostRestrictions,
+                     ExtensionMsg_UpdateDefaultPolicyHostRestrictions_Params)
+
 // Tell the render view about new tab-specific permissions for an extension.
 IPC_MESSAGE_CONTROL5(ExtensionMsg_UpdateTabSpecificPermissions,
                      GURL /* url */,