Move switch kUseGpuInTests from chrome to content

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 32c2e3331d8bb4db37ababcdf5ec9ab97b598e78..46680b3734754c20f0f2117e4ae2286c506021cf 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1309,9 +1309,6 @@ const char kTryChromeAgain[]                = "try-chrome-again";
 // Runs un-installation steps that were done by chrome first-run.
 const char kUninstall[]                     = "uninstall";
 
-// Use hardware gpu, if available, for tests.
-const char kUseGpuInTests[] = "use-gpu-in-tests";
-
 // Uses Spdy for the transport protocol instead of HTTP. This is a temporary
 // testing flag.
 const char kUseSpdy[]                       = "use-spdy";