Update base/timer.h code to pass through Location from call sites. (reland)

webkit/glue/webkitplatformsupport_impl.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/glue/webkitplatformsupport_impl.h"
 
 #if defined(OS_LINUX)
 #include <malloc.h>
 #endif
 
@@ skipping 510 matching lines @@
   // This results in measurable performance degradation unless we use ceil() to
   // always round up the sleep times.
   int64 interval = static_cast<int64>(
       ceil(interval_seconds * base::Time::kMillisecondsPerSecond)
       * base::Time::kMicrosecondsPerMillisecond);
 
   if (interval < 0)
     interval = 0;
 
   shared_timer_.Stop();
-  shared_timer_.Start(base::TimeDelta::FromMicroseconds(interval), this,
-                      &WebKitPlatformSupportImpl::DoTimeout);
+  shared_timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds(interval),
+                      this, &WebKitPlatformSupportImpl::DoTimeout);
 }
 
 void WebKitPlatformSupportImpl::stopSharedTimer() {
   shared_timer_.Stop();
 }
 
 void WebKitPlatformSupportImpl::callOnMainThread(
     void (*func)(void*), void* context) {
   main_loop_->PostTask(FROM_HERE, NewRunnableFunction(func, context));
 }
@@ skipping 108 matching lines @@
 
 void WebKitPlatformSupportImpl::ResumeSharedTimer() {
   // The shared timer may have fired or been adjusted while we were suspended.
   if (--shared_timer_suspended_ == 0 && !shared_timer_.IsRunning()) {
     setSharedTimerFireInterval(
         monotonicallyIncreasingTime() - shared_timer_fire_time_);
   }
 }
 
 }  // namespace webkit_glue