gpu: Add mojom for GpuPreferences.

gpu/ipc/common/gpu_preferences.typemap

Index: gpu/ipc/common/gpu_preferences.typemap
diff --git a/gpu/ipc/common/gpu_preferences.typemap b/gpu/ipc/common/gpu_preferences.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..0dfa9025eac854bc4b8a39c10d67cc19a641e628
--- /dev/null
+++ b/gpu/ipc/common/gpu_preferences.typemap
@@ -0,0 +1,16 @@
+# 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.
+
+mojom = "//gpu/ipc/common/gpu_preferences.mojom"
+public_headers = [ "//gpu/command_buffer/service/gpu_preferences.h" ]
+traits_headers = [ "//gpu/ipc/common/gpu_preferences_struct_traits.h" ]
+public_deps = [
+  "//gpu/command_buffer/service",
+  "//media:media_features",
+  "//mojo/common:struct_traits",
+]
+type_mappings = [
+  "gpu.mojom.GpuPreferences=gpu::GpuPreferences",
+  "gpu.mojom.VpxDecodeVendors=gpu::GpuPreferences::VpxDecodeVendors",
+]