Add BACKGROUND dump mode to various GPU/CC MemoryDumpProviders

gpu/command_buffer/client/gles2_implementation.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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 416 matching lines @@
     // |aggressively_free_resources_| is true.
     Flush();
   } else {
     ShallowFlushCHROMIUM();
   }
 }
 
 bool GLES2Implementation::OnMemoryDump(
     const base::trace_event::MemoryDumpArgs& args,
     base::trace_event::ProcessMemoryDump* pmd) {
+  using base::trace_event::MemoryAllocatorDump;
+  using base::trace_event::MemoryDumpLevelOfDetail;
+
   if (!transfer_buffer_->HaveBuffer())
     return true;
 
   const uint64_t tracing_process_id =
       base::trace_event::MemoryDumpManager::GetInstance()
           ->GetTracingProcessId();
 
-  base::trace_event::MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(
-      base::StringPrintf("gpu/transfer_buffer_memory/buffer_%d",
-                         transfer_buffer_->GetShmId()));
-  dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
-                  base::trace_event::MemoryAllocatorDump::kUnitsBytes,
+  MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(base::StringPrintf(
+      "gpu/transfer_buffer_memory/buffer_%d", transfer_buffer_->GetShmId()));
+  dump->AddScalar(MemoryAllocatorDump::kNameSize,
+                  MemoryAllocatorDump::kUnitsBytes,
                   transfer_buffer_->GetSize());
-  dump->AddScalar("free_size",
-                  base::trace_event::MemoryAllocatorDump::kUnitsBytes,
-                  transfer_buffer_->GetFreeSize());
-  auto guid =
-      GetBufferGUIDForTracing(tracing_process_id, transfer_buffer_->GetShmId());
-  const int kImportance = 2;
-  pmd->CreateSharedGlobalAllocatorDump(guid);
-  pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
+
+  if (args.level_of_detail != MemoryDumpLevelOfDetail::BACKGROUND) {
+    dump->AddScalar("free_size", MemoryAllocatorDump::kUnitsBytes,
+                    transfer_buffer_->GetFreeSize());
+    auto guid = GetBufferGUIDForTracing(tracing_process_id,
+                                        transfer_buffer_->GetShmId());
+    const int kImportance = 2;
+    pmd->CreateSharedGlobalAllocatorDump(guid);
+    pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
+  }
 
   return true;
 }
 
 void GLES2Implementation::WaitForCmd() {
   TRACE_EVENT0("gpu", "GLES2::WaitForCmd");
   helper_->CommandBufferHelper::Finish();
 }
 
 bool GLES2Implementation::IsExtensionAvailable(const char* ext) {
@@ skipping 6484 matching lines @@
   cached_extensions_.clear();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu