Fix page zoom to be frame-centric for out-of-process frames.

content/browser/renderer_host/render_view_host_delegate.h

Index: content/browser/renderer_host/render_view_host_delegate.h
diff --git a/content/browser/renderer_host/render_view_host_delegate.h b/content/browser/renderer_host/render_view_host_delegate.h
index 70b916f65bbdd15862b61817bfe7171581b81b1f..984f854b6a71ebf21a7ed44b1fdcc52e0b6cb3f2 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -220,6 +220,11 @@ class CONTENT_EXPORT RenderViewHostDelegate {
   // to this view.
   virtual SessionStorageNamespaceMap GetSessionStorageNamespaceMap();
 
+  // Returns the zoom level for the pending navigation for the page. If there
+  // is no pending navigation, this returns the zoom level for the current
+  // page.
+  virtual double GetPendingPageZoomLevel();
+
   // Returns true if the RenderViewHost will never be visible.
   virtual bool IsNeverVisible();