Add BACKGROUND dump mode to various GPU/CC MemoryDumpProviders

gpu/command_buffer/service/renderbuffer_manager.cc

Index: gpu/command_buffer/service/renderbuffer_manager.cc
diff --git a/gpu/command_buffer/service/renderbuffer_manager.cc b/gpu/command_buffer/service/renderbuffer_manager.cc
index 203e74b849d661b1dab15eaa849b41e5069707a9..5c5270efda2d00a4934c1d6e340d3f3901d3ba13 100644
--- a/gpu/command_buffer/service/renderbuffer_manager.cc
+++ b/gpu/command_buffer/service/renderbuffer_manager.cc
@@ -250,24 +250,34 @@ GLenum RenderbufferManager::InternalRenderbufferFormatToImplFormat(
 bool RenderbufferManager::OnMemoryDump(
     const base::trace_event::MemoryDumpArgs& args,
     base::trace_event::ProcessMemoryDump* pmd) {
-  int client_id = memory_tracker_->ClientId();
-  for (const auto& renderbuffer_entry : renderbuffers_) {
-    const auto& client_renderbuffer_id = renderbuffer_entry.first;
-    const auto& renderbuffer = renderbuffer_entry.second;
-
-    std::string dump_name =
-        base::StringPrintf("gpu/gl/renderbuffers/client_%d/renderbuffer_%d",
-                           client_id, client_renderbuffer_id);
-    base::trace_event::MemoryAllocatorDump* dump =
-        pmd->CreateAllocatorDump(dump_name);
-    dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
-                    base::trace_event::MemoryAllocatorDump::kUnitsBytes,
-                    static_cast<uint64_t>(renderbuffer->EstimatedSize()));
-
-    auto guid = gl::GetGLRenderbufferGUIDForTracing(
-        memory_tracker_->ShareGroupTracingGUID(), client_renderbuffer_id);
-    pmd->CreateSharedGlobalAllocatorDump(guid);
-    pmd->AddOwnershipEdge(dump->guid(), guid);
+  using base::trace_event::MemoryAllocatorDump;
+  using base::trace_event::MemoryDumpLevelOfDetail;
+
+  if (args.level_of_detail == MemoryDumpLevelOfDetail::BACKGROUND) {
+    std::string dump_name = base::StringPrintf(
+        "gpu/gl/renderbuffers/client_%d/" PRIu64, memory_tracker_->ClientId());
+    MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(dump_name);
+    dump->AddScalar(MemoryAllocatorDump::kNameSize,
+                    MemoryAllocatorDump::kUnitsBytes, mem_represented());
+  } else {
+    int client_id = memory_tracker_->ClientId();
+    for (const auto& renderbuffer_entry : renderbuffers_) {
+      const auto& client_renderbuffer_id = renderbuffer_entry.first;
+      const auto& renderbuffer = renderbuffer_entry.second;
+
+      std::string dump_name =
+          base::StringPrintf("gpu/gl/renderbuffers/client_%d/renderbuffer_%d",
+                             client_id, client_renderbuffer_id);
+      MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(dump_name);
+      dump->AddScalar(MemoryAllocatorDump::kNameSize,
+                      MemoryAllocatorDump::kUnitsBytes,
+                      static_cast<uint64_t>(renderbuffer->EstimatedSize()));
+
+      auto guid = gl::GetGLRenderbufferGUIDForTracing(
+          memory_tracker_->ShareGroupTracingGUID(), client_renderbuffer_id);
+      pmd->CreateSharedGlobalAllocatorDump(guid);
+      pmd->AddOwnershipEdge(dump->guid(), guid);
+    }
   }
   return true;
 }