[Mac] Implement the search engine manager

chrome/browser/cocoa/preferences_window_controller.mm

Index: chrome/browser/cocoa/preferences_window_controller.mm
diff --git a/chrome/browser/cocoa/preferences_window_controller.mm b/chrome/browser/cocoa/preferences_window_controller.mm
index 7a7179d6d606dcd42e1c3ba1f2391c2856b318c0..e5146bd4f57081ed68fbf237a279aefd2df79e94 100644
--- a/chrome/browser/cocoa/preferences_window_controller.mm
+++ b/chrome/browser/cocoa/preferences_window_controller.mm
@@ -13,6 +13,7 @@
 #include "chrome/browser/browser_process.h"
 #import "chrome/browser/cocoa/clear_browsing_data_controller.h"
 #import "chrome/browser/cocoa/custom_home_pages_model.h"
+#import "chrome/browser/cocoa/keyword_editor_cocoa_controller.h"
 #import "chrome/browser/cocoa/search_engine_list_model.h"
 #include "chrome/browser/extensions/extensions_service.h"
 #include "chrome/browser/metrics/metrics_service.h"
@@ -539,6 +540,13 @@ enum { kHomepageNewTabPage, kHomepageURL };
   [self setSearchEngineSelectedIndex:[self searchEngineSelectedIndex]];
 }
 
+// Brings up the edit search engines window.
+- (IBAction)manageSearchEngines:(id)sender {
+  KeywordEditorCocoaController* controller =
+      [[KeywordEditorCocoaController alloc] initWithProfile:profile_];
+  [[controller window] makeKeyAndOrderFront:sender];
+}
+
 // Called when the user clicks the button to make Chromium the default
 // browser. Registers http and https.
 - (IBAction)makeDefaultBrowser:(id)sender {