Revert of Move throttling of background timers into the renderer scheduler

third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp

Index: third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp b/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
index d5776efe28175ffc7047b5f08ffbfa35a2271953..adfe55ebe672167cf5caed5da39cf076d969115a 100644
--- a/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
@@ -148,6 +148,11 @@
     m_script->disableEval(errorMessage);
 }
 
+double WorkerGlobalScope::timerAlignmentInterval() const
+{
+    return DOMTimer::visiblePageAlignmentInterval();
+}
+
 DOMTimerCoordinator* WorkerGlobalScope::timers()
 {
     return &m_timers;