DO NOT COMMIT: Heap profiler for Skia (sk_malloc)

skia/ext/skia_trace_memory_dump_impl.cc

 // Copyright 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.
 
 #include "skia/ext/skia_trace_memory_dump_impl.h"
 
 #include "base/trace_event/memory_allocator_dump.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "skia/ext/SkDiscardableMemory_chrome.h"
 
 namespace skia {
 
 namespace {
 const char kMallocBackingType[] = "malloc";
+const char kSkMallocBackingType[] = "skia/sk_malloc";
 }
 
 SkiaTraceMemoryDumpImpl::SkiaTraceMemoryDumpImpl(
     base::trace_event::MemoryDumpLevelOfDetail level_of_detail,
     base::trace_event::ProcessMemoryDump* process_memory_dump)
     : SkiaTraceMemoryDumpImpl("", level_of_detail, process_memory_dump) {}
 
 SkiaTraceMemoryDumpImpl::SkiaTraceMemoryDumpImpl(
     const std::string& dump_name_prefix,
     base::trace_event::MemoryDumpLevelOfDetail level_of_detail,
@@ skipping 20 matching lines @@
                                                const char* backingObjectId) {
   if (strcmp(backingType, kMallocBackingType) == 0) {
     auto dump = process_memory_dump_->GetOrCreateAllocatorDump(dumpName);
     const char* system_allocator_name =
         base::trace_event::MemoryDumpManager::GetInstance()
             ->system_allocator_pool_name();
     if (system_allocator_name) {
       process_memory_dump_->AddSuballocation(dump->guid(),
                                              system_allocator_name);
     }
+  } else if (strcmp(backingType, kSkMallocBackingType) == 0) {
+    auto dump = process_memory_dump_->GetOrCreateAllocatorDump(dumpName);
+    process_memory_dump_->AddSuballocation(dump->guid(), backingType);
   } else {
     NOTREACHED();
   }
 }
 
 void SkiaTraceMemoryDumpImpl::setDiscardableMemoryBacking(
     const char* dumpName,
     const SkDiscardableMemory& discardableMemoryObject) {
   std::string name = dump_name_prefix_ + dumpName;
   DCHECK(!process_memory_dump_->GetAllocatorDump(name));
   const SkDiscardableMemoryChrome& discardable_memory_obj =
       static_cast<const SkDiscardableMemoryChrome&>(discardableMemoryObject);
   auto dump = discardable_memory_obj.CreateMemoryAllocatorDump(
       name.c_str(), process_memory_dump_);
   DCHECK(dump);
 }
 
 SkTraceMemoryDump::LevelOfDetail SkiaTraceMemoryDumpImpl::getRequestedDetails()
     const {
   return request_level_;
 }
 
 }  // namespace skia