Revert of Remove dependency of c/b/loader on c/b/host_zoom_map_impl.h

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 6be0addefb83b9e5391dfc437c93260fff8f6c14..19e0868ce8a2a4b333b232e4da3e759be27696b7 100644
--- a/content/browser/loader/async_resource_handler.cc
+++ b/content/browser/loader/async_resource_handler.cc
@@ -17,6 +17,7 @@
 #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"
@@ -355,6 +356,21 @@
   }
 
   NetLogObserver::PopulateResponseInfo(request(), response);
+
+  const HostZoomMapImpl* host_zoom_map =
+      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.