video: On ChromeOS don't assume GLX always.

content/browser/media/webrtc_browsertest.cc

Index: content/browser/media/webrtc_browsertest.cc
diff --git a/content/browser/media/webrtc_browsertest.cc b/content/browser/media/webrtc_browsertest.cc
index a2f9cf9bce35087cf6059633226247df693e135e..fcd030188cf0e1fe979bf9812206cf9e942a4766 100644
--- a/content/browser/media/webrtc_browsertest.cc
+++ b/content/browser/media/webrtc_browsertest.cc
@@ -95,10 +95,6 @@ class WebrtcBrowserTest: public ContentBrowserTest {
         switches::kUseFakeDeviceForMediaStream));
     ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
         switches::kUseFakeUIForMediaStream));
-
-    // The video playback will not work without a GPU, so force its use here.
-    // This may not be available on all VMs though.
-    command_line->AppendSwitch(switches::kUseGpuInTests);
   }
 
   void DumpChromeTraceCallback(