[WIP] Add SharedMemoryTracker to dump base::SharedMemory usage

ui/gl/gl_image_shared_memory.cc

Index: ui/gl/gl_image_shared_memory.cc
diff --git a/ui/gl/gl_image_shared_memory.cc b/ui/gl/gl_image_shared_memory.cc
index 83c8e5eba5388c0585072fa87a2c80f51699f499..3d7b991e39edcbd2ce768b41088291ea2c8a28fd 100644
--- a/ui/gl/gl_image_shared_memory.cc
+++ b/ui/gl/gl_image_shared_memory.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
+#include "base/memory/shared_memory_tracker.h"
 #include "base/numerics/safe_math.h"
 #include "base/process/process_handle.h"
 #include "base/sys_info.h"
@@ -86,11 +87,9 @@ void GLImageSharedMemory::OnMemoryDump(
   dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
                   base::trace_event::MemoryAllocatorDump::kUnitsBytes,
                   static_cast<uint64_t>(size_in_bytes));
-
-  auto guid = GetGenericSharedMemoryGUIDForTracing(process_tracing_id,
-                                                   shared_memory_id_);
-  pmd->CreateSharedGlobalAllocatorDump(guid);
-  pmd->AddOwnershipEdge(dump->guid(), guid);
+  base::SharedMemoryTracker::AddOwnershipEdges(pmd, dump->guid(),
+                                               shared_memory_->handle(),
+                                               shared_memory_->mapped_size());
 }
 
 }  // namespace gl