[tracing] Add names to memory-infra dumpers for debugging

gpu/command_buffer/service/transfer_buffer_manager.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/command_buffer/service/transfer_buffer_manager.h"
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 30 matching lines @@
 
   base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
       this);
 }
 
 bool TransferBufferManager::Initialize() {
   // When created from InProcessCommandBuffer, we won't have a |memory_tracker_|
   // so don't register a dump provider.
   if (memory_tracker_) {
     base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-        this, base::ThreadTaskRunnerHandle::Get());
+        this, "gpu::TransferBufferManager",
+        base::ThreadTaskRunnerHandle::Get());
   }
   return true;
 }
 
 bool TransferBufferManager::RegisterTransferBuffer(
     int32 id,
     scoped_ptr<BufferBacking> buffer_backing) {
   if (id <= 0) {
     DVLOG(0) << "Cannot register transfer buffer with non-positive ID.";
     return false;
@@ skipping 60 matching lines @@
     auto guid =
         GetBufferGUIDForTracing(memory_tracker_->ClientTracingId(), buffer_id);
     pmd->CreateSharedGlobalAllocatorDump(guid);
     pmd->AddOwnershipEdge(dump->guid(), guid);
   }
 
   return true;
 }
 
 }  // namespace gpu
-