Deduplicating CanReadRequestBody code.

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 7e7ca69fbe0f3d7926f2b711d92d143643392b34..af85a4e8b055b9c5d3529cbe8b4e2a1808adf52a 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -949,10 +949,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // to |url|.
   void SetLastCommittedSiteUrl(const GURL& url);
 
-  // Ensures that the upload parameters sent by the renderer process are
-  // valid and any files specified are allowed for access.
-  bool ValidateUploadParams(const CommonNavigationParams& common_params);
-
   // For now, RenderFrameHosts indirectly keep RenderViewHosts alive via a
   // refcount that calls Shutdown when it reaches zero.  This allows each
   // RenderFrameHostManager to just care about RenderFrameHosts, while ensuring