Cleanup unused #includes and declarations in PlatformImpl

sky/viewer/platform/platform_impl.cc

 // Copyright 2014 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 "sky/viewer/platform/platform_impl.h"
 
-#include <cmath>
-
-#include "base/debug/trace_event.h"
-#include "base/rand_util.h"
-#include "base/stl_util.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/time/time.h"
 #include "mojo/public/cpp/application/application_impl.h"
-#include "net/base/data_url.h"
-#include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 #include "sky/viewer/platform/weburlloader_impl.h"
 
 namespace sky {
 
 PlatformImpl::PlatformImpl(mojo::ApplicationImpl* app)
-    : main_loop_(base::MessageLoop::current()),
-      main_thread_task_runner_(base::MessageLoop::current()->task_runner()) {
+    : main_thread_task_runner_(base::MessageLoop::current()->task_runner()) {
   app->ConnectToService("mojo:network_service", &network_service_);
 }
 
 PlatformImpl::~PlatformImpl() {
 }
 
 blink::WebString PlatformImpl::defaultLocale() {
   return blink::WebString::fromUTF8("en-US");
 }
 
@@ skipping 14 matching lines @@
   blink::WebURLError error;
   error.domain = blink::WebString::fromUTF8(net::kErrorDomain);
   error.reason = net::ERR_ABORTED;
   error.unreachableURL = url;
   error.staleCopyInCache = false;
   error.isCancellation = true;
   return error;
 }
 
 }  // namespace sky