Add scheme to HostZoomMap

content/public/browser/host_zoom_map.h

Index: content/public/browser/host_zoom_map.h
diff --git a/content/public/browser/host_zoom_map.h b/content/public/browser/host_zoom_map.h
index 1e32e79383702721f3128efef30a2e0fff8f82eb..bd5c1ea9db5942aee4f159781a8378f458d41fda 100644
--- a/content/public/browser/host_zoom_map.h
+++ b/content/public/browser/host_zoom_map.h
@@ -39,6 +39,15 @@ class HostZoomMap {
   // This may be called on any thread.
   virtual double GetZoomLevel(const std::string& host) const = 0;
 
+  // Returns the zoom level for the host or spec for a given url, taking
+  // |scheme| in account. If there is specific zoom level specified for given
+  // |scheme| and |host| pair, it will be returned. In other cases result is
+  // equivalent to GetZoomLevel(host).
+  //
+  // This may be called on any thread.
+  virtual double GetZoomLevel(const std::string& scheme,
+                              const std::string& host) const = 0;
+
   // Sets the zoom level for the host or spec for a given url to |level|.  If
   // the level matches the current default zoom level, the host is erased
   // from the saved preferences; otherwise the new value is written out.
@@ -46,6 +55,13 @@ class HostZoomMap {
   // This should only be called on the UI thread.
   virtual void SetZoomLevel(const std::string& host, double level) = 0;
 
+  // Sets the zoom level for the |scheme|/|host| pair to |level|.
+  //
+  // This should only be called on the UI thread.
+  virtual void SetZoomLevel(const std::string& scheme,
+                            const std::string& host,
+                            double level) = 0;
+
   // Get/Set the default zoom level for pages that don't override it.
   virtual double GetDefaultZoomLevel() const = 0;
   virtual void SetDefaultZoomLevel(double level) = 0;;