Use mojo for Chrome Loading, Part 1

content/browser/loader/resource_message_filter.h

Index: content/browser/loader/resource_message_filter.h
diff --git a/content/browser/loader/resource_message_filter.h b/content/browser/loader/resource_message_filter.h
index 7047aa64735c453ed3a7f9f43cf31a6ca0a04149..0b929a4286906201fffe03e4b8c42d6fe2270cf9 100644
--- a/content/browser/loader/resource_message_filter.h
+++ b/content/browser/loader/resource_message_filter.h
@@ -11,6 +11,7 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
+#include "content/common/url_loader.mojom.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/common/resource_type.h"
 
@@ -98,6 +99,9 @@ class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter {
   int child_id() const { return child_id_; }
   int process_type() const { return process_type_; }
 
+  // IPC::Sender
+  bool Send(IPC::Message* message) override;
+
   base::WeakPtr<ResourceMessageFilter> GetWeakPtr();
 
  protected:
@@ -105,6 +109,9 @@ class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter {
   ~ResourceMessageFilter() override;
 
  private:
+  bool SendWithMojo(mojom::URLLoaderClient* client,
+                    const IPC::Message& message);
+
   // The ID of the child process.
   int child_id_;