Add FrameHost mojo service

content/browser/loader/async_resource_handler.cc

Index: content/browser/loader/async_resource_handler.cc
diff --git a/content/browser/loader/async_resource_handler.cc b/content/browser/loader/async_resource_handler.cc
index 78e0dab415bb2318f7548a6154c65f18d018faa3..7c2567ce8021cb7e8a33ef5ed08313a25630862e 100644
--- a/content/browser/loader/async_resource_handler.cc
+++ b/content/browser/loader/async_resource_handler.cc
@@ -17,7 +17,6 @@
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
-#include "content/browser/host_zoom_map_impl.h"
 #include "content/browser/loader/netlog_observer.h"
 #include "content/browser/loader/resource_buffer.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
@@ -344,21 +343,6 @@ bool AsyncResourceHandler::OnResponseStarted(ResourceResponse* response,
 
   NetLogObserver::PopulateResponseInfo(request(), response);
 
-  const HostZoomMapImpl* host_zoom_map =

[wjmaclean, 2016/05/16 18:53:07]

If I remember correctly, this is the only consumer for
ResourceMessageFilter::GetHostZoomMap(), so you should trace back through that
code dependency and remove it. 

[scottmg, 2016/05/16 22:54:56]

Done.

-      static_cast<const HostZoomMapImpl*>(info->filter()->GetHostZoomMap());
-
-  if (info->GetResourceType() == RESOURCE_TYPE_MAIN_FRAME && host_zoom_map) {
-    const GURL& request_url = request()->url();
-    int render_process_id = info->GetChildID();
-    int render_view_id = info->GetRouteID();
-
-    double zoom_level = host_zoom_map->GetZoomLevelForView(
-        request_url, render_process_id, render_view_id);
-
-    info->filter()->Send(new ViewMsg_SetZoomLevelForLoadingURL(
-        render_view_id, request_url, zoom_level));
-  }
-
   // If the parent handler downloaded the resource to a file, grant the child
   // read permissions on it.
   if (!response->head.download_file_path.empty()) {