Allow access to the module system as part of an extension browser test.

This cl adds a renderer-only binding to chrome.test to retrieve the current module system.

It then becomes possible to require modules that ordinarily have little to no coverage by tests (e.g. internal bindings). It also makes js heavy API's easier to test.

TEST=AutomationApiTest.Unit
BUG=309681,387954

Review URL: https://codereview.chromium.org/345233003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279942 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 16 insertions, 0 deletions

diff --git a/extensions/renderer/v8_context_native_handler.cc b/extensions/renderer/v8_context_native_handler.cc
index 56cd973..09f9c8a 100644
--- a/extensions/renderer/v8_context_native_handler.cc
+++ b/extensions/renderer/v8_context_native_handler.cc
@@ -22,6 +22,10 @@ V8ContextNativeHandler::V8ContextNativeHandler(ScriptContext* context,
   RouteFunction("GetModuleSystem",
                 base::Bind(&V8ContextNativeHandler::GetModuleSystem,
                            base::Unretained(this)));
+  RouteFunction(
+      "RunWithNativesEnabledModuleSystem",
+      base::Bind(&V8ContextNativeHandler::RunWithNativesEnabledModuleSystem,
+                 base::Unretained(this)));
 }
 
 void V8ContextNativeHandler::GetAvailability(
@@ -52,4 +56,16 @@ void V8ContextNativeHandler::GetModuleSystem(
   args.GetReturnValue().Set(context->module_system()->NewInstance());
 }
 
+void V8ContextNativeHandler::RunWithNativesEnabledModuleSystem(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  CHECK_EQ(args.Length(), 1);
+  CHECK(args[0]->IsFunction());
+  v8::Handle<v8::Value> call_with_args[] = {
+    context()->module_system()->NewInstance()
+  };
+  ModuleSystem::NativesEnabledScope natives_enabled(context()->module_system());
+  context()->CallFunction(
+      v8::Handle<v8::Function>::Cast(args[0]), 1, call_with_args);
+}
+
 }  // namespace extensions