Adding histograms showing fraction of page load times

chrome/browser/profiles/profile_impl_io_data.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 "chrome/browser/profiles/profile_impl_io_data.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 249 matching lines @@
   DestroyResourceContext();
 
   if (media_request_context_.get())
     media_request_context_->AssertNoURLRequests();
 }
 
 void ProfileImplIOData::LazyInitializeInternal(
     ProfileParams* profile_params) const {
   ChromeURLRequestContext* main_context = main_request_context();
   ChromeURLRequestContext* extensions_context = extensions_request_context();
-  media_request_context_.reset(new ChromeURLRequestContext);
+  media_request_context_.reset(new ChromeURLRequestContext(
+      ChromeURLRequestContext::CONTEXT_TYPE_MEDIA, cache_stats()));
 
   IOThread* const io_thread = profile_params->io_thread;
   IOThread::Globals* const io_thread_globals = io_thread->globals();
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   // Only allow Record Mode if we are in a Debug build or where we are running
   // a cycle, and the user has limited control.
   bool record_mode = command_line.HasSwitch(switches::kRecordMode) &&
                      (chrome::kRecordModeEnabled ||
                       command_line.HasSwitch(switches::kVisitURLs));
   bool playback_mode = command_line.HasSwitch(switches::kPlaybackMode);
@@ skipping 189 matching lines @@
   media_request_context_->set_job_factory(media_request_job_factory_.get());
   extensions_context->set_job_factory(extensions_job_factory_.get());
 
   lazy_params_.reset();
 }
 
 ChromeURLRequestContext*
 ProfileImplIOData::InitializeAppRequestContext(
     ChromeURLRequestContext* main_context,
     const std::string& app_id) const {
-  AppRequestContext* context = new AppRequestContext;
+  AppRequestContext* context = new AppRequestContext(cache_stats());
 
   // If this is for a guest process, we should not persist cookies and http
   // cache.
   bool guest_process = (app_id.find("guest-") != std::string::npos);
 
   // Copy most state from the main context.
   context->CopyFrom(main_context);
 
   FilePath app_path = app_path_.AppendASCII(app_id);
   FilePath cookie_path = app_path.Append(chrome::kCookieFilename);
@@ skipping 86 matching lines @@
 void ProfileImplIOData::ClearNetworkingHistorySinceOnIOThread(
     base::Time time) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   LazyInitialize();
 
   DCHECK(transport_security_state());
   transport_security_state()->DeleteSince(time);
   DCHECK(http_server_properties_manager());
   http_server_properties_manager()->Clear();
 }