Remove requirement that mojo::Environment be instantiated.

mojo/public/cpp/bindings/tests/router_unittest.cc

 // Copyright 2014 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 <stdlib.h>
 #include <string.h>
 
 #include "mojo/public/cpp/bindings/lib/message_builder.h"
 #include "mojo/public/cpp/bindings/lib/router.h"
 #include "mojo/public/cpp/bindings/tests/message_queue.h"
-#include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace test {
 namespace {
 
 void AllocRequestMessage(uint32_t name, const char* text, Message* message) {
   size_t payload_size = strlen(text) + 1;  // Plus null terminator.
@@ skipping 111 matching lines @@
 
   void TearDown() override {}
 
   void PumpMessages() { loop_.RunUntilIdle(); }
 
  protected:
   ScopedMessagePipeHandle handle0_;
   ScopedMessagePipeHandle handle1_;
 
  private:
-  Environment env_;
   RunLoop loop_;
 };
 
 TEST_F(RouterTest, BasicRequestResponse) {
   internal::Router router0(handle0_.Pass(), internal::MessageValidatorList());
   internal::Router router1(handle1_.Pass(), internal::MessageValidatorList());
 
   ResponseGenerator generator;
   router1.set_incoming_receiver(&generator);
 
@@ skipping 301 matching lines @@
     EXPECT_TRUE(generator.has_responder());
   }
 
   EXPECT_FALSE(generator.responder_is_valid());
   generator.CompleteWithResponse();  // This should end up doing nothing.
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo