[tracing] Change outer/inner size repr. in memory dumps (blink side)

Source/platform/heap/BlinkGCMemoryDumpProvider.cpp

 // 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 "config.h"
 #include "Source/platform/heap/BlinkGCMemoryDumpProvider.h"
 
 #include "platform/heap/Handle.h"
 #include "public/platform/WebMemoryAllocatorDump.h"
 #include "public/platform/WebProcessMemoryDump.h"
 #include "wtf/StdLibExtras.h"
 
 namespace blink {
 
 BlinkGCMemoryDumpProvider* BlinkGCMemoryDumpProvider::instance()
 {
     DEFINE_STATIC_LOCAL(BlinkGCMemoryDumpProvider, instance, ());
     return &instance;
 }
 
 bool BlinkGCMemoryDumpProvider::onMemoryDump(blink::WebProcessMemoryDump* memoryDump)
 {
     WebMemoryAllocatorDump* allocatorDump = memoryDump->createMemoryAllocatorDump("blink_gc");
-    allocatorDump->AddScalar("inner_size", "bytes", Heap::allocatedObjectSize());
-    allocatorDump->AddScalar("outer_size", "bytes", Heap::allocatedSpace());
-    allocatorDump->AddScalar("estimated_live_object_size", "bytes", Heap::estimatedLiveObjectSize());
+    allocatorDump->AddScalar("size", "bytes", Heap::allocatedSpace());
+
+    WebMemoryAllocatorDump* objectsDump = memoryDump->createMemoryAllocatorDump("blink_gc/allocated_objects");
+    objectsDump->AddScalar("size", "bytes", Heap::allocatedObjectSize());
+    objectsDump->AddScalar("estimated_live_object_size", "bytes", Heap::estimatedLiveObjectSize());
+
     return true;
 }
 
 BlinkGCMemoryDumpProvider::BlinkGCMemoryDumpProvider()
 {
 }
 
 BlinkGCMemoryDumpProvider::~BlinkGCMemoryDumpProvider()
 {
 }
 
 } // namespace blink