MacViews: Get chrome/browser/ui/views/frame to compile

chrome/browser/ui/views/frame/browser_command_handler_x11.cc

Index: chrome/browser/ui/views/frame/browser_command_handler_x11.cc
diff --git a/chrome/browser/ui/views/frame/browser_command_handler_x11.cc b/chrome/browser/ui/views/frame/browser_command_handler_x11.cc
index ce37fcc47799ad2138f4e943214cead8fd23c3ea..9f4860e9f2404979d249bafb43e19515306afa2f 100644
--- a/chrome/browser/ui/views/frame/browser_command_handler_x11.cc
+++ b/chrome/browser/ui/views/frame/browser_command_handler_x11.cc
@@ -7,16 +7,22 @@
 #include <X11/Xlib.h>
 
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/web_contents.h"
+#include "ui/aura/window.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 
 BrowserCommandHandlerX11::BrowserCommandHandlerX11(Browser* browser)
-    : browser_(browser) {}
+    : browser_(browser) {
+  browser->window()->GetNativeWindow()->AddPreTargetHandler(this);
+}
 
-BrowserCommandHandlerX11::~BrowserCommandHandlerX11() {}
+BrowserCommandHandlerX11::~BrowserCommandHandlerX11() {
+  browser_->window()->GetNativeWindow()->RemovePreTargetHandler(this);
+}
 
 void BrowserCommandHandlerX11::OnMouseEvent(ui::MouseEvent* event) {
   if (event->type() != ui::ET_MOUSE_PRESSED)