Fix places where "request" is misspelled "requst". Surprisingly, there are several.

chrome/browser/history/history.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 845 matching lines @@
     LoadBackendIfNecessary();
     if (consumer)
       AddRequest(request, consumer);
     ScheduleTask(priority,
                  base::Bind(func, history_backend_.get(),
                             scoped_refptr<RequestType>(request), a));
     return request->handle();
   }
 
   template<typename BackendFunc,
-           class RequestType,  // Descendant of CancelableRequstBase.
+           class RequestType,  // Descendant of CancelableRequestBase.
            typename ArgA,
            typename ArgB>
   Handle Schedule(SchedulePriority priority,
                   BackendFunc func,  // Function to call on the HistoryBackend.
                   CancelableRequestConsumerBase* consumer,
                   RequestType* request,
                   const ArgA& a,
                   const ArgB& b) {
     DCHECK(thread_) << "History service being called after cleanup";
     LoadBackendIfNecessary();
     if (consumer)
       AddRequest(request, consumer);
     ScheduleTask(priority,
                  base::Bind(func, history_backend_.get(),
                             scoped_refptr<RequestType>(request), a, b));
     return request->handle();
   }
 
   template<typename BackendFunc,
-           class RequestType,  // Descendant of CancelableRequstBase.
+           class RequestType,  // Descendant of CancelableRequestBase.
            typename ArgA,
            typename ArgB,
            typename ArgC>
   Handle Schedule(SchedulePriority priority,
                   BackendFunc func,  // Function to call on the HistoryBackend.
                   CancelableRequestConsumerBase* consumer,
                   RequestType* request,
                   const ArgA& a,
                   const ArgB& b,
                   const ArgC& c) {
     DCHECK(thread_) << "History service being called after cleanup";
     LoadBackendIfNecessary();
     if (consumer)
       AddRequest(request, consumer);
     ScheduleTask(priority,
                  base::Bind(func, history_backend_.get(),
                             scoped_refptr<RequestType>(request), a, b, c));
     return request->handle();
   }
 
   template<typename BackendFunc,
-           class RequestType,  // Descendant of CancelableRequstBase.
+           class RequestType,  // Descendant of CancelableRequestBase.
            typename ArgA,
            typename ArgB,
            typename ArgC,
            typename ArgD>
   Handle Schedule(SchedulePriority priority,
                   BackendFunc func,  // Function to call on the HistoryBackend.
                   CancelableRequestConsumerBase* consumer,
                   RequestType* request,
                   const ArgA& a,
                   const ArgB& b,
                   const ArgC& c,
                   const ArgD& d) {
     DCHECK(thread_) << "History service being called after cleanup";
     LoadBackendIfNecessary();
     if (consumer)
       AddRequest(request, consumer);
     ScheduleTask(priority,
                  base::Bind(func, history_backend_.get(),
                             scoped_refptr<RequestType>(request), a, b, c, d));
     return request->handle();
   }
 
   template<typename BackendFunc,
-           class RequestType,  // Descendant of CancelableRequstBase.
+           class RequestType,  // Descendant of CancelableRequestBase.
            typename ArgA,
            typename ArgB,
            typename ArgC,
            typename ArgD,
            typename ArgE>
   Handle Schedule(SchedulePriority priority,
                   BackendFunc func,  // Function to call on the HistoryBackend.
                   CancelableRequestConsumerBase* consumer,
                   RequestType* request,
                   const ArgA& a,
@@ skipping 139 matching lines @@
   // See http://crbug.com/138321
   scoped_ptr<history::InMemoryURLIndex> in_memory_url_index_;
 
   scoped_refptr<ObserverListThreadSafe<history::VisitDatabaseObserver> >
       visit_database_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryService);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_H_