RenderWidget/RenderView: encapsulate ViewHostMsg_Show, etc, in a callback

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 661945115c8f8ceb6a68a846f6f0948bfdf4caec..6bb4ef849910aa6732a7eda5436c0a6fe40894b2 100644
--- a/content/renderer/render_widget_fullscreen_pepper.h
+++ b/content/renderer/render_widget_fullscreen_pepper.h
@@ -12,7 +12,7 @@
 #include "base/macros.h"
 #include "content/renderer/mouse_lock_dispatcher.h"
 #include "content/renderer/pepper/fullscreen_container.h"
-#include "content/renderer/render_widget_fullscreen.h"
+#include "content/renderer/render_widget.h"
 #include "third_party/WebKit/public/web/WebWidget.h"
 #include "url/gurl.h"
 
@@ -21,17 +21,18 @@ class WebLayer;
 }
 
 namespace content {
+class CompositorDependencies;
 class PepperPluginInstanceImpl;
 
 // A RenderWidget that hosts a fullscreen pepper plugin. This provides a
 // FullscreenContainer that the plugin instance can callback into to e.g.
 // invalidate rects.
-class RenderWidgetFullscreenPepper : public RenderWidgetFullscreen,
+class RenderWidgetFullscreenPepper : public RenderWidget,
                                      public FullscreenContainer {
  public:
   static RenderWidgetFullscreenPepper* Create(
       int32_t routing_id,
-      int32_t opener_id,
+      const RenderWidget::ShowCallback& show_callback,
       CompositorDependencies* compositor_deps,
       PepperPluginInstanceImpl* plugin,
       const GURL& active_url,
@@ -69,9 +70,6 @@ class RenderWidgetFullscreenPepper : public RenderWidgetFullscreen,
   void Close() override;
   void OnResize(const ResizeParams& params) override;
 
-  // RenderWidgetFullscreen API.
-  blink::WebWidget* CreateWebWidget() override;
-
   // RenderWidget overrides.
   GURL GetURLForGraphicsContext3D() override;
   void OnDeviceScaleFactorChanged() override;