Add a method to the HostContentSettings map to return the |Value| of a content setting

chrome/browser/content_settings/host_content_settings_map.h

Index: chrome/browser/content_settings/host_content_settings_map.h
diff --git a/chrome/browser/content_settings/host_content_settings_map.h b/chrome/browser/content_settings/host_content_settings_map.h
index cc7150a8edcc11c2810b1b09453a947586cbeced..e4e370f2005714225c82ad63ff3907092bf93e3b 100644
--- a/chrome/browser/content_settings/host_content_settings_map.h
+++ b/chrome/browser/content_settings/host_content_settings_map.h
@@ -17,6 +17,7 @@
 #include "base/basictypes.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
+#include "base/values.h"
 #include "base/synchronization/lock.h"
 #include "chrome/browser/content_settings/content_settings_pattern.h"
 #include "chrome/browser/content_settings/content_settings_observer.h"
@@ -79,6 +80,19 @@ class HostContentSettingsMap
       ContentSettingsType content_type,
       const std::string& resource_identifier) const;
 
+  // Returns a content setting |Value| which applies to the given URLs. Note
+  // that certain internal schemes are whitelisted. For ContentSettingsTypes
+  // that require a resource identifier to be specified, the
+  // |resource_identifier| must be non-empty. Ownership of the returned |Value|
+  // is transfered to the caller.
+  //
+  // This may be called on any thread.
+  Value* GetContentSettingValue(
+      const GURL& primary_url,
+      const GURL& secondary_url,
+      ContentSettingsType content_type,
+      const std::string& resource_identifier) const;
+
   // Gets the content setting for cookies. This takes the third party cookie
   // flag into account, and therefore needs to know whether we read or write a
   // cookie.