Send content settings based on the URL to the renderer instead of just the host.

chrome/browser/host_zoom_map.h

Index: chrome/browser/host_zoom_map.h
diff --git a/chrome/browser/host_zoom_map.h b/chrome/browser/host_zoom_map.h
index 87dee2ce2e2c00525bcc5aa5a7979f4b734de31e..648162c2c9c62faa41f85c12410d52c3e8f713e8 100644
--- a/chrome/browser/host_zoom_map.h
+++ b/chrome/browser/host_zoom_map.h
@@ -17,6 +17,7 @@
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 
+class GURL;
 class PrefService;
 class Profile;
 
@@ -27,19 +28,21 @@ class HostZoomMap : public NotificationObserver,
 
   static void RegisterUserPrefs(PrefService* prefs);
 
-  // Returns the zoom level for a given hostname.  In most cases, there is no
-  // custom zoom level, and this returns 0.  Otherwise, returns the saved zoom
-  // level, which may be positive (to zoom in) or negative (to zoom out).
+  // Returns the zoom level for a given url. The zoom level is determined by
+  // the host portion of the URL, or (in the absence of a host) the complete
+  // spec of the URL. In most cases, there is no custom zoom level, and this
+  // returns 0.  Otherwise, returns the saved zoom level, which may be positive
+  // (to zoom in) or negative (to zoom out).
   //
   // This may be called on any thread.
-  int GetZoomLevel(const std::string& host) const;
+  int GetZoomLevel(const GURL& url) const;
 
-  // Sets the zoom level for a given hostname to |level|.  If the level is 0,
+  // Sets the zoom level for a given url to |level|.  If the level is 0,
   // the host is erased from the saved preferences; otherwise the new value is
   // written out.
   //
   // This should only be called on the UI thread.
-  void SetZoomLevel(const std::string& host, int level);
+  void SetZoomLevel(const GURL& url, int level);
 
   // Resets all zoom levels.
   //