[Chromecast] Raises CastService creation to CastContentBrowserClient.

chromecast/renderer/cast_render_process_observer.h

Index: chromecast/renderer/cast_render_process_observer.h
diff --git a/chromecast/renderer/cast_render_process_observer.h b/chromecast/renderer/cast_render_process_observer.h
index 479026c5717a284a1f2d0175ba2ecce7b56a63bf..a84bec151c62a6596a57c077cd22e39fefa9ff53 100644
--- a/chromecast/renderer/cast_render_process_observer.h
+++ b/chromecast/renderer/cast_render_process_observer.h
@@ -11,10 +11,6 @@
 #include "base/memory/ref_counted.h"
 #include "content/public/renderer/render_process_observer.h"
 
-namespace IPC {
-class MessageFilter;
-}
-
 namespace chromecast {
 class CapabilitiesMessageFilter;
 namespace media {
@@ -25,9 +21,7 @@ namespace shell {
 
 class CastRenderProcessObserver : public content::RenderProcessObserver {
  public:
-  CastRenderProcessObserver(
-      const std::vector<scoped_refptr<IPC::MessageFilter>>&
-          platform_message_filters);
+  CastRenderProcessObserver();
   ~CastRenderProcessObserver() override;
 
  private:
@@ -40,7 +34,6 @@ class CastRenderProcessObserver : public content::RenderProcessObserver {
   scoped_refptr<media::CmaMessageFilterProxy> cma_message_filter_proxy_;
 #endif  // !defined(OS_ANDROID)
   scoped_refptr<CapabilitiesMessageFilter> capabilities_message_filter_;
-  std::vector<scoped_refptr<IPC::MessageFilter>> platform_message_filters_;
 
   DISALLOW_COPY_AND_ASSIGN(CastRenderProcessObserver);
 };