Implement a shell of FindRequestManager, and hook it up to WebContentsImpl.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 1b0946ed27a3be5f7a206ee54f60ed6e959bd417..f4e1039eef5b0f2e451f7fd45dcb4aaac10c1fe4 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -2517,17 +2517,6 @@ void RenderFrameHostImpl::DidCancelPopupMenu() {
 
 #elif defined(OS_ANDROID)
 
-void RenderFrameHostImpl::ActivateNearestFindResult(int request_id,
-                                                    float x,
-                                                    float y) {
-  Send(
-      new InputMsg_ActivateNearestFindResult(GetRoutingID(), request_id, x, y));
-}
-
-void RenderFrameHostImpl::RequestFindMatchRects(int current_version) {
-  Send(new FrameMsg_FindMatchRects(GetRoutingID(), current_version));
-}
-
 void RenderFrameHostImpl::DidSelectPopupMenuItems(
     const std::vector<int>& selected_indices) {
   Send(new FrameMsg_SelectPopupMenuItems(routing_id_, false, selected_indices));