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

cc/resources/resource_provider.cc

 // Copyright 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 "cc/resources/resource_provider.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/atomic_sequence_num.h"
@@ skipping 1021 matching lines @@
 }
 
 void ResourceProvider::Initialize() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // In certain cases, ThreadTaskRunnerHandle isn't set (Android Webview).
   // Don't register a dump provider in these cases.
   // TODO(ericrk): Get this working in Android Webview. crbug.com/517156
   if (base::ThreadTaskRunnerHandle::IsSet()) {
     base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-        this, base::ThreadTaskRunnerHandle::Get());
+        this, "cc::ResourceProvider", base::ThreadTaskRunnerHandle::Get());
   }
 
   GLES2Interface* gl = ContextGL();
   if (!gl) {
     default_resource_type_ = RESOURCE_TYPE_BITMAP;
     // Pick an arbitrary limit here similar to what hardware might.
     max_texture_size_ = 16 * 1024;
     best_texture_format_ = RGBA_8888;
     return;
   }
@@ skipping 587 matching lines @@
       const int kImportance = 2;
       pmd->CreateSharedGlobalAllocatorDump(guid);
       pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
     }
   }
 
   return true;
 }
 
 }  // namespace cc