base::Bind: Cleanup in automation.

chrome/browser/automation/ui_controls_mac.mm

Index: chrome/browser/automation/ui_controls_mac.mm
diff --git a/chrome/browser/automation/ui_controls_mac.mm b/chrome/browser/automation/ui_controls_mac.mm
index 6e38ef7ac8d081a870e08e62b9c36d32c931471a..ad2242ca457d6bc464a0787ecb5a444da6967013 100644
--- a/chrome/browser/automation/ui_controls_mac.mm
+++ b/chrome/browser/automation/ui_controls_mac.mm
@@ -8,6 +8,7 @@
 #include <mach/mach_time.h>
 #include <vector>
 
+#include "base/callback.h"
 #include "base/message_loop.h"
 #include "chrome/browser/automation/ui_controls_internal.h"
 #include "content/browser/browser_thread.h"
@@ -189,10 +190,9 @@ void SynthesizeKeyEventsSequence(NSWindow* window,
 
 // A task class to watch for the event queue. The specific task will be fired
 // when there is no more event in the queue.
-class EventQueueWatcher : public Task {
+class EventQueueWatcher : public base::Closure {
  public:
-  EventQueueWatcher(Task* task) : task_(task) {}
-
+  EventQueueWatcher(const base::Closure& task) : task_(task) {}
   virtual ~EventQueueWatcher() {}
 
   virtual void Run() {
@@ -202,13 +202,13 @@ class EventQueueWatcher : public Task {
                                           dequeue:NO];
     // If there is still event in the queue, then we need to check again.
     if (event)
-      MessageLoop::current()->PostTask(FROM_HERE, new EventQueueWatcher(task_));
+      MessageLoop::current()->PostTask(FROM_HERE, EventQueueWatcher(task_));
     else
       MessageLoop::current()->PostTask(FROM_HERE, task_);
   }
 
  private:
-  Task* task_;
+  base::Closure task_;
 };
 
 // Stores the current mouse location on the screen. So that we can use it
@@ -228,7 +228,7 @@ bool SendKeyPress(gfx::NativeWindow window,
                   bool command) {
   return SendKeyPressNotifyWhenDone(window, key,
                                     control, shift, alt, command,
-                                    NULL);
+                                    base::Closure());
 }
 
 // Win and Linux implement a SendKeyPress() this as a
@@ -239,7 +239,7 @@ bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
                                 bool shift,
                                 bool alt,
                                 bool command,
-                                Task* task) {
+                                const base::Closure& task) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   std::vector<NSEvent*> events;
@@ -361,7 +361,7 @@ void MoveMouseToCenterAndPress(
     NSView* view,
     MouseButton button,
     int state,
-    Task* task) {
+    const base::Closure& task) {
   DCHECK(view);
   NSWindow* window = [view window];
   DCHECK(window);
@@ -377,7 +377,7 @@ void MoveMouseToCenterAndPress(
   center = NSMakePoint(center.x, [screen frame].size.height - center.y);
 
   SendMouseMoveNotifyWhenDone(center.x, center.y,
-                              new ClickTask(button, state, task));
+                              ClickTask(button, state, task));
 }
 
 }  // ui_controls