Update the child process security policy to use explicit permission grants.

content/browser/renderer_host/render_view_host_impl.h

Index: content/browser/renderer_host/render_view_host_impl.h
diff --git a/content/browser/renderer_host/render_view_host_impl.h b/content/browser/renderer_host/render_view_host_impl.h
index 2e76a7142605a1c7d14b0f4a3d501b9f6274dcfd..4cd162450e43f6da26db23d8a8cd9e4966aa73b6 100644
--- a/content/browser/renderer_host/render_view_host_impl.h
+++ b/content/browser/renderer_host/render_view_host_impl.h
@@ -192,7 +192,7 @@ class CONTENT_EXPORT RenderViewHostImpl
   virtual void FirePageBeforeUnload(bool for_cross_site_transition) OVERRIDE;
   virtual void FilesSelectedInChooser(
       const std::vector<ui::SelectedFileInfo>& files,
-      int permissions) OVERRIDE;
+      RenderViewHost::FileSelectionPermissions permissions) OVERRIDE;
   virtual RenderViewHostDelegate* GetDelegate() const OVERRIDE;
   virtual int GetEnabledBindings() const OVERRIDE;
   virtual SiteInstance* GetSiteInstance() const OVERRIDE;