Don't include the tracing in gpu_memory_buffer.h

ui/gfx/gpu_memory_buffer.h

Index: ui/gfx/gpu_memory_buffer.h
diff --git a/ui/gfx/gpu_memory_buffer.h b/ui/gfx/gpu_memory_buffer.h
index 327dd69e2827f35768b11ba8b6331b0517cd578b..9c4ea406f893b9fac2f20f867dd5cea13d7ccf58 100644
--- a/ui/gfx/gpu_memory_buffer.h
+++ b/ui/gfx/gpu_memory_buffer.h
@@ -9,7 +9,6 @@
 #include <stdint.h>
 
 #include "base/memory/shared_memory.h"
-#include "base/trace_event/memory_dump_manager.h"
 #include "build/build_config.h"
 #include "ui/gfx/buffer_types.h"
 #include "ui/gfx/generic_shared_memory_id.h"
@@ -56,10 +55,6 @@ struct GFX_EXPORT GpuMemoryBufferHandle {
 #endif
 };
 
-base::trace_event::MemoryAllocatorDumpGuid GFX_EXPORT
-GetGpuMemoryBufferGUIDForTracing(uint64_t tracing_process_id,
-                                 GpuMemoryBufferId buffer_id);
-
 // This interface typically correspond to a type of shared memory that is also
 // shared with the GPU. A GPU memory buffer can be written to directly by
 // regular CPU code, but can also be read by the GPU.