Added disabling EGL extensions support with --disable-extensions.

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index 2384a1b2cc24d135c3b99ef1ef0db40824a0a5fc..9d3a23c3b5aa53410bc5969098cb3bbc58a1fff9 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -77,7 +77,7 @@ static const char* const kSwitchNames[] = {
   switches::kDisableBreakpad,
   switches::kDisableGpuSandbox,
   switches::kDisableGpuWatchdog,
-  switches::kDisableGLExtensions,
+  switches::kDisableExtensions,

[no sievers, 2015/05/28 19:25:10]

I wouldn't use this name since extensions means something else in the more
general context of Chrome.
Can we just leave the current name and live with it being a bit imprecise?

[David Yen, 2015/06/05 23:59:50]

Done.

   switches::kDisableLogging,
   switches::kDisableSeccompFilterSandbox,
 #if defined(ENABLE_WEBRTC)