RenderWidget: make routing_id be a parameter of the ctor

content/renderer/mus/compositor_mus_connection_unittest.cc

 // Copyright 2016 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 "content/renderer/mus/compositor_mus_connection.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 133 matching lines @@
   void ProcessRafAlignedInput(int routing_id) override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestInputHandlerManagerClient);
 };
 
 // Implementation of RenderWidget for testing, performs no initialization.
 class TestRenderWidget : public RenderWidget {
  public:
   explicit TestRenderWidget(CompositorDependencies* compositor_deps)
-      : RenderWidget(compositor_deps,
+      : RenderWidget(1,
+                     compositor_deps,
                      blink::WebPopupTypeNone,
                      ScreenInfo(),
                      true,
                      false,
                      false) {}
 
  protected:
   ~TestRenderWidget() override {}
 
  private:
@@ skipping 327 matching lines @@
   EXPECT_FALSE(ack_callback.get());
 
   VerifyAndRunQueues(true, true);
 
   // The ack callback should have been called
   EXPECT_TRUE(test_callback->called());
   EXPECT_EQ(EventResult::HANDLED, test_callback->result());
 }
 
 }  // namespace content