Enable permission warnings from ManifestHandlers.

chrome/common/extensions/manifest_handler.cc

Index: chrome/common/extensions/manifest_handler.cc
diff --git a/chrome/common/extensions/manifest_handler.cc b/chrome/common/extensions/manifest_handler.cc
index fbd2201b01e33ea9be8ff1527dda66c05a7c6e18..81150193f183d1d22f0d8b0005224b3b6e01c93c 100644
--- a/chrome/common/extensions/manifest_handler.cc
+++ b/chrome/common/extensions/manifest_handler.cc
@@ -57,6 +57,18 @@ void ManifestHandler::Register() {
     GetRegistry()->RegisterManifestHandler(keys[i], this_linked);
 }
 
+void ManifestHandler::AddPermissionWarningMessages(
+    const Extension* extension,
+    std::vector<string16>& messages) const {
+  // Nothing by default
+}
+
+void ManifestHandler::AddPermissionWarningMessagesDetails(
+    const Extension* extension,
+    std::vector<string16>& messages) const {
+  // Nothing by default
+}
+
 // static
 void ManifestHandler::FinalizeRegistration() {
   GetRegistry()->Finalize();
@@ -80,6 +92,18 @@ bool ManifestHandler::ValidateExtension(const Extension* extension,
 }
 
 // static
+std::vector<string16> ManifestHandler::
+    GetExtensionPermissionWarningMessages(const Extension* extension) {
+  return GetRegistry()->GetExtensionPermissionWarningMessages(extension);
+}
+
+// static
+std::vector<string16> ManifestHandler::
+    GetExtensionPermissionWarningMessagesDetails(const Extension* extension) {
+  return GetRegistry()->GetExtensionPermissionWarningMessagesDetails(extension);
+}
+
+// static
 const std::vector<std::string> ManifestHandler::SingleKey(
     const std::string& key) {
   return std::vector<std::string>(1, key);
@@ -144,6 +168,28 @@ bool ManifestHandlerRegistry::ValidateExtension(
   return true;
 }
 
+std::vector<string16> ManifestHandlerRegistry::
+    GetExtensionPermissionWarningMessages(const Extension* extension) {
+  std::vector<string16> result;
+  for (ManifestHandlerMap::iterator iter = handlers_.begin();
+       iter != handlers_.end(); ++iter) {
+    ManifestHandler* handler = iter->second.get();
+    handler->AddPermissionWarningMessages(extension, result);
+  }
+  return result;
+}
+
+std::vector<string16> ManifestHandlerRegistry::
+    GetExtensionPermissionWarningMessagesDetails(const Extension* extension) {
+  std::vector<string16> result;
+  for (ManifestHandlerMap::iterator iter = handlers_.begin();
+       iter != handlers_.end(); ++iter) {
+    ManifestHandler* handler = iter->second.get();
+    handler->AddPermissionWarningMessagesDetails(extension, result);
+  }
+  return result;
+}
+
 // static
 ManifestHandlerRegistry* ManifestHandlerRegistry::SetForTesting(
     ManifestHandlerRegistry* new_registry) {