Remove WebThemeEngine

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/files/file_path.h"
@@ skipping 40 matching lines @@
       shared_timer_suspended_(0) {
   app->ConnectToService("mojo:network_service", &network_service_);
 
   mojo::CookieStorePtr cookie_store;
   network_service_->GetCookieStore(GetProxy(&cookie_store));
 }
 
 PlatformImpl::~PlatformImpl() {
 }
 
-blink::WebThemeEngine* PlatformImpl::themeEngine() {
-  return &theme_engine_;
-}
-
 blink::WebString PlatformImpl::defaultLocale() {
   return blink::WebString::fromUTF8("en-US");
 }
 
 double PlatformImpl::currentTime() {
   return base::Time::Now().ToDoubleT();
 }
 
 double PlatformImpl::monotonicallyIncreasingTime() {
   return base::TimeTicks::Now().ToInternalValue() /
@@ skipping 177 matching lines @@
   else
     CHECK(false);
 
   std::string buffer;
   base::ReadFileToString(path, &buffer);
   CHECK(!buffer.empty());
   return blink::WebData(buffer.data(), buffer.size());
 }
 
 }  // namespace sky