Move Time, TimeDelta and TimeTicks into namespace base.

base/timer.h

Index: base/timer.h
===================================================================
--- base/timer.h	(revision 3954)
+++ base/timer.h	(working copy)
@@ -68,7 +68,7 @@
 
   // Returns the current delay for this timer.  May only call this method when
   // the timer is running!
-  TimeDelta GetCurrentDelay() const {
+  base::TimeDelta GetCurrentDelay() const {
     DCHECK(IsRunning());
     return delayed_task_->delay_;
   }
@@ -79,11 +79,11 @@
   // We have access to the timer_ member so we can orphan this task.
   class TimerTask : public Task {
    public:
-    TimerTask(TimeDelta delay) : delay_(delay) {
+    TimerTask(base::TimeDelta delay) : delay_(delay) {
       // timer_ is set in InitiateDelayedTask.
     }
     BaseTimer_Helper* timer_;
-    TimeDelta delay_;
+    base::TimeDelta delay_;
   };
 
   // Used to orphan delayed_task_ so that when it runs it does nothing.
@@ -108,7 +108,7 @@
 
   // Call this method to start the timer.  It is an error to call this method
   // while the timer is already running.
-  void Start(TimeDelta delay, Receiver* receiver, ReceiverMethod method) {
+  void Start(base::TimeDelta delay, Receiver* receiver, ReceiverMethod method) {
     DCHECK(!IsRunning());
     InitiateDelayedTask(new TimerTask(delay, receiver, method));
   }
@@ -130,7 +130,7 @@
   
   class TimerTask : public BaseTimer_Helper::TimerTask {
    public:
-    TimerTask(TimeDelta delay, Receiver* receiver, ReceiverMethod method)
+    TimerTask(base::TimeDelta delay, Receiver* receiver, ReceiverMethod method)
         : BaseTimer_Helper::TimerTask(delay),
           receiver_(receiver),
           method_(method) {