Implement important sites dialog for desktop.

chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h

Index: chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h
diff --git a/chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h b/chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h
index 6137c84bcd618fa5c0df63b042b03def58b2e737..f52d1d3cb312bd4721bb85c95251a5dd58e3c9ed 100644
--- a/chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h
+++ b/chrome/browser/ui/webui/settings/settings_clear_browsing_data_handler.h
@@ -22,6 +22,7 @@ class ListValue;
 
 namespace content {
 class WebUI;
+class BrowsingDataFilterBuilder;
 }
 
 namespace settings {
@@ -46,10 +47,18 @@ class ClearBrowsingDataHandler : public SettingsPageUIHandler,
   // Clears browsing data, called by Javascript.
   void HandleClearBrowsingData(const base::ListValue* value);
 
+  // Parses a ListValue with important site information and creates a
+  // BrowsingDataFilterBuilder.
+  std::unique_ptr<content::BrowsingDataFilterBuilder> ProcessImportantSites(
+      const base::ListValue* important_sites);
+
   // Called when a clearing task finished. |webui_callback_id| is provided
   // by the WebUI action that initiated it.
   void OnClearingTaskFinished(const std::string& webui_callback_id);
 
+  // Fetches important sites, called by Javascript.
+  void HandleFetchImportantSites(const base::ListValue* value);
+
   // Initializes the dialog UI. Called by JavaScript when the DOM is ready.
   void HandleInitialize(const base::ListValue* args);