Add a method to the content_settings::ProviderInterface to return the content settings Value.

chrome/browser/content_settings/content_settings_mock_provider.h

Index: chrome/browser/content_settings/content_settings_mock_provider.h
diff --git a/chrome/browser/content_settings/content_settings_mock_provider.h b/chrome/browser/content_settings/content_settings_mock_provider.h
index 3962dea237bd3fee83e883d977c5fc08ed5ee859..630614b929ed02f043e3845d0613a7c59103784a 100644
--- a/chrome/browser/content_settings/content_settings_mock_provider.h
+++ b/chrome/browser/content_settings/content_settings_mock_provider.h
@@ -55,8 +55,14 @@ class MockProvider : public ProviderInterface {
 
   // ProviderInterface implementation
   virtual ContentSetting GetContentSetting(
-      const GURL& requesting_url,
-      const GURL& embedding_url,
+      const GURL& primary_url,
+      const GURL& secondary_url,
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier) const;
+
+  virtual Value* GetContentSettingValue(
+      const GURL& primary_url,
+      const GURL& secondary_url,
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier) const;