Add tracing for GL texture objects

ui/gl/trace_util.h

Index: ui/gl/trace_util.h
diff --git a/ui/gl/trace_util.h b/ui/gl/trace_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..796a0c2588e220dddfdf366c75fb9c6fdc6a0b32
--- /dev/null
+++ b/ui/gl/trace_util.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2015 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.
+
+#ifndef UI_GL_TRACE_UTIL_H_
+#define UI_GL_TRACE_UTIL_H_
+
+#include "base/trace_event/memory_allocator_dump.h"
+#include "ui/gl/gl_export.h"
+
+namespace gfx {
+
+GL_EXPORT base::trace_event::MemoryAllocatorDumpGuid GetGLTextureGUIDForTracing(
+    uint64_t tracing_process_id,
+    uint32_t texture_id);
+
+}  // namespace ui
+
+#endif  // UI_GL_TRACE_UTIL_H_