RenderWidget: make routing_id be a parameter of the ctor

content/renderer/render_widget_fullscreen_pepper.h

Index: content/renderer/render_widget_fullscreen_pepper.h
diff --git a/content/renderer/render_widget_fullscreen_pepper.h b/content/renderer/render_widget_fullscreen_pepper.h
index 5bd7e3d16ea465ac6b547c14264790ed357d6a98..661945115c8f8ceb6a68a846f6f0948bfdf4caec 100644
--- a/content/renderer/render_widget_fullscreen_pepper.h
+++ b/content/renderer/render_widget_fullscreen_pepper.h
@@ -30,6 +30,7 @@ class RenderWidgetFullscreenPepper : public RenderWidgetFullscreen,
                                      public FullscreenContainer {
  public:
   static RenderWidgetFullscreenPepper* Create(
+      int32_t routing_id,
       int32_t opener_id,
       CompositorDependencies* compositor_deps,
       PepperPluginInstanceImpl* plugin,
@@ -56,7 +57,8 @@ class RenderWidgetFullscreenPepper : public RenderWidgetFullscreen,
   }
 
  protected:
-  RenderWidgetFullscreenPepper(CompositorDependencies* compositor_deps,
+  RenderWidgetFullscreenPepper(int32_t routing_id,
+                               CompositorDependencies* compositor_deps,
                                PepperPluginInstanceImpl* plugin,
                                const GURL& active_url,
                                const ScreenInfo& screen_info);