Don't show host permission warnings for platform apps.

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index 990271e17965fb76156cfce707cc728c617aec50..1c0510f45999f69d00d1fe2e2274177a5ec5e9ad 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -3498,7 +3498,7 @@ PermissionMessages Extension::GetPermissionMessages() const {
   if (IsTrustedId(id()))
     return PermissionMessages();
   else
-    return runtime_data_.GetActivePermissions()->GetPermissionMessages();
+    return runtime_data_.GetActivePermissions()->GetPermissionMessages(this);
 }
 
 std::vector<string16> Extension::GetPermissionMessageStrings() const {
@@ -3506,7 +3506,7 @@ std::vector<string16> Extension::GetPermissionMessageStrings() const {
   if (IsTrustedId(id()))
     return std::vector<string16>();
   else
-    return runtime_data_.GetActivePermissions()->GetWarningMessages();
+    return runtime_data_.GetActivePermissions()->GetWarningMessages(this);
 }
 
 void Extension::SetActivePermissions(