[MD History] Run MD History on chrome://chrome/history.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.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 "base/debug/stack_trace.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 
 #include <stddef.h>
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
@@ skipping 412 matching lines @@
   if (url.host() == chrome::kChromeUIMdSettingsHost)
     return &NewWebUI<settings::MdSettingsUI>;
   // If the material design extensions page is enabled, it gets its own host.
   // Otherwise, it's handled by the uber settings page.
   if (url.host() == chrome::kChromeUIExtensionsHost &&
       base::FeatureList::IsEnabled(features::kMaterialDesignExtensions)) {
     return &NewWebUI<extensions::ExtensionsUI>;
   }
   // Material Design history is on its own host, rather than on an Uber page.
   if (MdHistoryUI::IsEnabled(profile) &&
-      url.host() == chrome::kChromeUIHistoryHost) {
+      url.host() == chrome::kChromeUIUberHost &&
+      url.path().find("/" + std::string(chrome::kChromeUIHistoryHost)) == 0) {
     return &NewWebUI<MdHistoryUI>;
   }
   // Material Design Settings gets its own host, if enabled.
   if (base::FeatureList::IsEnabled(features::kMaterialDesignSettings) &&
       url.host() == chrome::kChromeUISettingsHost) {
     return &NewWebUI<settings::MdSettingsUI>;
   }
   if (url.host() == chrome::kChromeUIQuotaInternalsHost)
     return &NewWebUI<QuotaInternalsUI>;
   // Settings are implemented with native UI elements on Android.
   // Handle chrome://settings if settings in a window and about in settings
   // are enabled.
   if (url.host() == chrome::kChromeUISettingsFrameHost ||
       (url.host() == chrome::kChromeUISettingsHost &&
        ::switches::AboutInSettingsEnabled())) {
     return &NewWebUI<options::OptionsUI>;
   }
   if (url.host() == chrome::kChromeUISyncFileSystemInternalsHost)
     return &NewWebUI<SyncFileSystemInternalsUI>;
   if (url.host() == chrome::kChromeUISystemInfoHost)
     return &NewWebUI<SystemInfoUI>;
   // Uber frame is not used on Android.
   if (url.host() == chrome::kChromeUIUberFrameHost)
     return &NewWebUI<UberFrameUI>;
   // Uber page is not used on Android.
-  if (url.host() == chrome::kChromeUIUberHost)
+  if (url.host() == chrome::kChromeUIUberHost) {
     return &NewWebUI<UberUI>;
+  }
 #endif  // !defined(OS_ANDROID)
 #if defined(OS_WIN)
   if (url.host() == chrome::kChromeUIConflictsHost)
     return &NewWebUI<ConflictsUI>;
   if (url.host() == chrome::kChromeUIMetroFlowHost)
     return &NewWebUI<SetAsDefaultBrowserUI>;
 #endif
 #if defined(OS_CHROMEOS)
   if (url.host() == chrome::kChromeUIBluetoothPairingHost)
     return &NewWebUI<chromeos::BluetoothPairingUI>;
@@ skipping 344 matching lines @@
 #endif
 
   // Android doesn't use the plugins pages.
   if (page_url.host() == chrome::kChromeUIPluginsHost)
     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 
 #endif
 
   return NULL;
 }