Remove unused WebMIMERegistry

sky/engine/testing/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/engine/testing/platform/platform_impl.h"
 
 #include <cmath>
 
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/time/time.h"
 #include "net/base/data_url.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 
 namespace sky {
 
 PlatformImpl::PlatformImpl()
     : main_loop_(base::MessageLoop::current()),
       shared_timer_func_(NULL),
       shared_timer_fire_time_(0.0),
       shared_timer_fire_time_was_set_while_suspended_(false),
       shared_timer_suspended_(0) {
 }
 
 PlatformImpl::~PlatformImpl() {
 }
 
-blink::WebMimeRegistry* PlatformImpl::mimeRegistry() {
-  return &mime_registry_;
-}
-
 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();
@@ skipping 46 matching lines @@
   return &unit_test_support_;
 }
 
 const unsigned char* PlatformImpl::getTraceCategoryEnabledFlag(
     const char* category_name) {
   static const unsigned char buf[] = "*";
   return buf;
 }
 
 }  // namespace sky