Move ModuleSystemTest and the tests that use it into extensions/.

extensions/renderer/module_system_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
-#include "chrome/test/base/module_system_test.h"
 #include "extensions/renderer/module_system.h"
+#include "extensions/renderer/module_system_test.h"
 #include "gin/modules/module_registry.h"
 
-// TODO(cduvall/kalman): Put this file in extensions namespace.
-using extensions::ModuleSystem;
-using extensions::NativeHandler;
-using extensions::ObjectBackedNativeHandler;
+namespace extensions {
 
 class CounterNatives : public ObjectBackedNativeHandler {
  public:
-  explicit CounterNatives(extensions::ChromeV8Context* context)
+  explicit CounterNatives(ScriptContext* context)
       : ObjectBackedNativeHandler(context), counter_(0) {
-    RouteFunction("Get", base::Bind(&CounterNatives::Get,
-        base::Unretained(this)));
-    RouteFunction("Increment", base::Bind(&CounterNatives::Increment,
-        base::Unretained(this)));
+    RouteFunction("Get",
+                  base::Bind(&CounterNatives::Get, base::Unretained(this)));
+    RouteFunction(
+        "Increment",
+        base::Bind(&CounterNatives::Increment, base::Unretained(this)));
   }
 
   void Get(const v8::FunctionCallbackInfo<v8::Value>& args) {
     args.GetReturnValue().Set(static_cast<int32_t>(counter_));
   }
 
   void Increment(const v8::FunctionCallbackInfo<v8::Value>& args) {
     counter_++;
   }
 
  private:
   int counter_;
 };
 
 class TestExceptionHandler : public ModuleSystem::ExceptionHandler {
  public:
-  TestExceptionHandler()
-      : handled_exception_(false) {
-  }
+  TestExceptionHandler() : handled_exception_(false) {}
 
   virtual void HandleUncaughtException(const v8::TryCatch& try_catch) OVERRIDE {
     handled_exception_ = true;
   }
 
   bool handled_exception() const { return handled_exception_; }
 
  private:
   bool handled_exception_;
 };
@@ skipping 428 matching lines @@
                         "  requireNative('assert').AssertTrue("
                         "      natives.requireAsync('foo') === undefined);"
                         "});");
   scoped_ptr<ModuleSystemTestEnvironment> other_env = CreateEnvironment();
   gin::ModuleRegistry::From(env()->context()->v8_context())->AddBuiltinModule(
       env()->isolate(), "natives", other_env->module_system()->NewInstance());
   other_env->ShutdownModuleSystem();
   env()->module_system()->Require("test");
   RunResolvedPromises();
 }
+
+}  // namespace extensions