Revert "Adding a high-resolution timer to platform win32."

This reverts r12651.

Review URL: https://codereview.chromium.org/11033014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/platform-win32.cc b/src/platform-win32.cc
index f9e37d8..65d31a9 100644 (file)
--- a/src/platform-win32.cc
+++ b/src/platform-win32.cc
@@ -591,16 +591,8 @@ double OS::TimeCurrentMillis() {
   return t.ToJSTime();
 }
 
-
-static LARGE_INTEGER frequency = 0;
-
-
-// Returns the tickcounter based on QueryPerformanceCounter or timeGetTime.
+// Returns the tickcounter based on timeGetTime.
 int64_t OS::Ticks() {
-  static LARGE_INTEGER tick;
-  if (frequency != 0 && QueryPerformanceCounter(&tick)) {
-    return static_cast<int64_t>(tick.QuadPart * 1e6 / frequency->QuadPart);
-  }
   return timeGetTime() * 1000;  // Convert to microseconds.
 }
 
@@ -2095,15 +2087,12 @@ void OS::SetUp() {
   // call this setup code within the same millisecond.
   uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis());
   srand(static_cast<unsigned int>(seed));
-  // Get the number of ticks per second that is used in OS::Ticks()
-  QueryPerformanceFrequency(&frequency);
   limit_mutex = CreateMutex();
   SamplerThread::SetUp();
 }
 
 
 void OS::TearDown() {
-  frequency = 0;
   SamplerThread::TearDown();
   delete limit_mutex;
 }