Convert ChromeViewHostMsg_UpdatedCacheStats to use mojo.

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index 72df6663a45b812a5778b3b88bdb295c9ea2d568..eced319379d8dcaf4dc79984188d70403c987a60 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -26,6 +26,7 @@
 #include "content/browser/renderer_host/frame_sink_provider_impl.h"
 #include "content/browser/renderer_host/offscreen_canvas_provider_impl.h"
 #include "content/browser/webrtc/webrtc_eventlog_host.h"
+#include "content/common/associated_interface_registry_impl.h"
 #include "content/common/associated_interfaces.mojom.h"
 #include "content/common/content_export.h"
 #include "content/common/indexed_db/indexed_db.mojom.h"
@@ -343,6 +344,8 @@ class CONTENT_EXPORT RenderProcessHostImpl
       const std::string& name,
       mojom::AssociatedInterfaceAssociatedRequest request) override;
 
+  void BindRouteProvider(mojom::RouteProviderAssociatedRequest request);
+
   void CreateMusGpuRequest(ui::mojom::GpuRequest request);
   void CreateOffscreenCanvasProvider(
       blink::mojom::OffscreenCanvasProviderRequest request);
@@ -457,6 +460,8 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // delete ourselves.
   IDMap<IPC::Listener*> listeners_;
 

[ncarter (slow), 2017/04/27 20:43:53]

// Mojo interfaces provided to the child process are registered here if
// they need consistent delivery ordering with legacy IPC, and are
// are process-wide in nature (e.g. metrics, memory usage).

[nigeltao1, 2017/04/28 00:33:25]

Done.

+  std::unique_ptr<AssociatedInterfaceRegistryImpl> associated_interfaces_;
+
   mojo::AssociatedBinding<mojom::RouteProvider> route_provider_binding_;
   mojo::AssociatedBindingSet<mojom::AssociatedInterfaceProvider, int32_t>
       associated_interface_provider_bindings_;