Add BACKGROUND dump mode to various GPU/CC MemoryDumpProviders

gpu/command_buffer/client/mapped_memory.cc

Index: gpu/command_buffer/client/mapped_memory.cc
diff --git a/gpu/command_buffer/client/mapped_memory.cc b/gpu/command_buffer/client/mapped_memory.cc
index 06f1f63e0c9c01e77aecb84be13364ec377bc4dd..dc9fb02d9bcb2dc318bb53deeaef632c90ae7c74 100644
--- a/gpu/command_buffer/client/mapped_memory.cc
+++ b/gpu/command_buffer/client/mapped_memory.cc
@@ -169,30 +169,37 @@ void MappedMemoryManager::FreeUnused() {
 bool MappedMemoryManager::OnMemoryDump(
     const base::trace_event::MemoryDumpArgs& args,
     base::trace_event::ProcessMemoryDump* pmd) {
-  const uint64_t tracing_process_id =
-      base::trace_event::MemoryDumpManager::GetInstance()
-          ->GetTracingProcessId();
-
-  for (const auto& chunk : chunks_) {
-    std::string dump_name = base::StringPrintf(
-        "gpu/mapped_memory/manager_%d/chunk_%d", tracing_id_, chunk->shm_id());
-    base::trace_event::MemoryAllocatorDump* dump =
-        pmd->CreateAllocatorDump(dump_name);
-
-    dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
-                    base::trace_event::MemoryAllocatorDump::kUnitsBytes,
-                    chunk->GetSize());
-    dump->AddScalar("free_size",
-                    base::trace_event::MemoryAllocatorDump::kUnitsBytes,
-                    chunk->GetFreeSize());
-
-    auto guid = GetBufferGUIDForTracing(tracing_process_id, chunk->shm_id());
-
-    const int kImportance = 2;
-    pmd->CreateSharedGlobalAllocatorDump(guid);
-    pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
+  using base::trace_event::MemoryAllocatorDump;
+  using base::trace_event::MemoryDumpLevelOfDetail;
+
+  if (args.level_of_detail == MemoryDumpLevelOfDetail::BACKGROUND) {
+    std::string dump_name =
+        base::StringPrintf("gpu/mapped_memory/manager_%d", tracing_id_);
+    MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(dump_name);
+    dump->AddScalar(MemoryAllocatorDump::kNameSize,
+                    MemoryAllocatorDump::kUnitsBytes, allocated_memory_);

[ssid, 2016/10/07 00:07:21]

return here?

[ericrk, 2016/10/13 23:58:13]

Done.

+  } else {
+    const uint64_t tracing_process_id =
+        base::trace_event::MemoryDumpManager::GetInstance()
+            ->GetTracingProcessId();
+    for (const auto& chunk : chunks_) {
+      std::string dump_name =
+          base::StringPrintf("gpu/mapped_memory/manager_%d/chunk_%d",
+                             tracing_id_, chunk->shm_id());
+      MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(dump_name);
+
+      dump->AddScalar(MemoryAllocatorDump::kNameSize,
+                      MemoryAllocatorDump::kUnitsBytes, chunk->GetSize());
+      dump->AddScalar("free_size", MemoryAllocatorDump::kUnitsBytes,
+                      chunk->GetFreeSize());
+
+      auto guid = GetBufferGUIDForTracing(tracing_process_id, chunk->shm_id());
+
+      const int kImportance = 2;
+      pmd->CreateSharedGlobalAllocatorDump(guid);
+      pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
+    }
   }
-
   return true;
 }