Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

net/url_request/url_request.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.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 210 matching lines @@
                                           base::Unretained(this))),
       has_notified_completion_(false),
       received_response_content_length_(0),
       creation_time_(base::TimeTicks::Now()) {
   SIMPLE_STATS_COUNTER("URLRequestCount");
 
   // Sanity check out environment.
   DCHECK(base::MessageLoop::current())
       << "The current base::MessageLoop must exist";
 
-  DCHECK(base::MessageLoop::current()->IsType(base::MessageLoop::TYPE_IO))
-      << ""
-         "The current base::MessageLoop must be TYPE_IO";
-
   CHECK(context);
   context->url_requests()->insert(this);
 
   net_log_.BeginEvent(NetLog::TYPE_REQUEST_ALIVE);
 }
 
 URLRequest::URLRequest(const GURL& url,
                        Delegate* delegate,
                        const URLRequestContext* context,
                        NetworkDelegate* network_delegate)
@@ skipping 16 matching lines @@
                                           base::Unretained(this))),
       has_notified_completion_(false),
       received_response_content_length_(0),
       creation_time_(base::TimeTicks::Now()) {
   SIMPLE_STATS_COUNTER("URLRequestCount");
 
   // Sanity check out environment.
   DCHECK(base::MessageLoop::current())
       << "The current base::MessageLoop must exist";
 
-  DCHECK(base::MessageLoop::current()->IsType(base::MessageLoop::TYPE_IO))
-      << ""
-         "The current base::MessageLoop must be TYPE_IO";
-
   CHECK(context);
   context->url_requests()->insert(this);
 
   net_log_.BeginEvent(NetLog::TYPE_REQUEST_ALIVE);
 }
 
 URLRequest::~URLRequest() {
   Cancel();
 
   if (network_delegate_) {
@@ skipping 813 matching lines @@
       new base::debug::StackTrace(NULL, 0);
   *stack_trace_copy = stack_trace;
   stack_trace_.reset(stack_trace_copy);
 }
 
 const base::debug::StackTrace* URLRequest::stack_trace() const {
   return stack_trace_.get();
 }
 
 }  // namespace net