content/child/web_process_memory_dump_impl.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/child/web_process_memory_dump_impl.h"
   6
   7 #include "base/trace_event/process_memory_dump.h"
   8 #include "content/child/web_memory_allocator_dump_impl.h"
   9
  10 namespace content {
  11
  12 WebProcessMemoryDumpImpl::WebProcessMemoryDumpImpl(
  13     base::trace_event::ProcessMemoryDump* process_memory_dump)
  14     : process_memory_dump_(process_memory_dump) {
  15 }
  16
  17 WebProcessMemoryDumpImpl::~WebProcessMemoryDumpImpl() {
  18 }
  19
  20 blink::WebMemoryAllocatorDump*
  21 WebProcessMemoryDumpImpl::createMemoryAllocatorDump(
  22     const blink::WebString& absolute_name) {
  23   // Get a MemoryAllocatorDump from the base/ object.
  24   base::trace_event::MemoryAllocatorDump* mad =
  25       process_memory_dump_->CreateAllocatorDump(absolute_name.utf8());
  26   if (!mad)
  27     return nullptr;
  28
  29   // Wrap it and return to blink.
  30   WebMemoryAllocatorDumpImpl* web_mad_impl =
  31       new WebMemoryAllocatorDumpImpl(mad);
  32
  33   // memory_allocator_dumps_ will take ownership of |web_mad_impl|.
  34   memory_allocator_dumps_.push_back(web_mad_impl);
  35   return web_mad_impl;
  36 }
  37
  38 }  // namespace content