gpu: Move native memory buffer configuration into //gpu

gpu/ipc/host/gpu_switches.h

Index: gpu/ipc/host/gpu_switches.h
diff --git a/gpu/ipc/host/gpu_switches.h b/gpu/ipc/host/gpu_switches.h
new file mode 100644
index 0000000000000000000000000000000000000000..7f205af4f4ae4342b3a25f21a40d4a7d614f1713
--- /dev/null
+++ b/gpu/ipc/host/gpu_switches.h
@@ -0,0 +1,17 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Defines all the command-line switches used by gpu/ipc/host
+
+#ifndef GPU_IPC_HOST_GPU_SWITCHES_H_
+#define GPU_IPC_HOST_GPU_SWITCHES_H_
+
+namespace switches {
+
+extern const char kEnableNativeGpuMemoryBuffers[];
+extern const char kDisableNativeGpuMemoryBuffers[];
+
+}  // namespace switches
+
+#endif  // GPU_IPC_HOST_GPU_SWITCHES_H_