Track SimpleCache memory usage in net/ MemoryDumpProvider

net/url_request/url_request_context.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.
 
 #include "net/url_request/url_request_context.h"
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/memory_allocator_dump.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "net/base/sdch_manager.h"
 #include "net/cookies/cookie_store.h"
 #include "net/dns/host_resolver.h"
+#include "net/http/http_cache.h"
 #include "net/http/http_transaction_factory.h"
 #include "net/socket/ssl_client_socket_impl.h"
 #include "net/url_request/http_user_agent_settings.h"
 #include "net/url_request/url_request.h"
 
 namespace net {
 
 URLRequestContext::URLRequestContext()
     : net_log_(nullptr),
       host_resolver_(nullptr),
@@ skipping 111 matching lines @@
   base::trace_event::MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(
       base::StringPrintf("net/url_request_context/%s_%p", name_.c_str(), this));
   dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameObjectCount,
                   base::trace_event::MemoryAllocatorDump::kUnitsObjects,
                   url_requests_->size());
   HttpTransactionFactory* transaction_factory = http_transaction_factory();
   if (transaction_factory) {
     HttpNetworkSession* network_session = transaction_factory->GetSession();
     if (network_session)
       network_session->DumpMemoryStats(pmd, dump->absolute_name());
+    HttpCache* http_cache = transaction_factory->GetCache();
+    if (http_cache)
+      http_cache->DumpMemoryStats(pmd, dump->absolute_name());
   }
   SSLClientSocketImpl::DumpSSLClientSessionMemoryStats(pmd);
   if (sdch_manager_)
     sdch_manager_->DumpMemoryStats(pmd, dump->absolute_name());
   return true;
 }
 
 }  // namespace net