Use HighResNow whenever possible on Windows.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 3a13a578bffbeafc23c23e1e1d3edeb6ff369949..efc9f44cd990f9ec668620e155bdb09c5955488f 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -938,9 +938,6 @@ const char kDisableDirectWrite[]             = "disable-direct-write";
 // Disable the Legacy Window which corresponds to the size of the WebContents.
 const char kDisableLegacyIntermediateWindow[] = "disable-legacy-window";
 
-// Use high resolution timers for TimeTicks.
-const char kEnableHighResolutionTime[]      = "enable-high-resolution-time";
-
 // Enable the Win32K process mitigation policy for renderer processes which
 // prevents them from invoking user32 and gdi32 system calls which enter
 // the kernel. This is only supported on Windows 8 and beyond.