json_schema_compiler: Use std::vector<char> for binary values.

chrome/browser/extensions/api/braille_display_private/braille_controller_stub.cc

 // Copyright 2013 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 "chrome/browser/extensions/api/braille_display_private/braille_controller.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "chrome/common/extensions/api/braille_display_private.h"
 
 namespace extensions {
 namespace api {
 namespace braille_display_private {
 
 // Stub implementation of BrailleController for use when brlapi is not
 // enabled.
 class BrailleControllerImpl : public BrailleController {
  public:
   static BrailleControllerImpl* GetInstance();
   scoped_ptr<DisplayState> GetDisplayState() override;
-  void WriteDots(const std::string& cells) override;
+  void WriteDots(const std::vector<char>& cells) override;
   void AddObserver(BrailleObserver* observer) override;
   void RemoveObserver(BrailleObserver* observer) override;
 
  private:
   BrailleControllerImpl();
   ~BrailleControllerImpl() override;
   friend struct DefaultSingletonTraits<BrailleControllerImpl>;
   DISALLOW_COPY_AND_ASSIGN(BrailleControllerImpl);
 };
 
@@ skipping 17 matching lines @@
 // static
 BrailleControllerImpl* BrailleControllerImpl::GetInstance() {
   return Singleton<BrailleControllerImpl,
                    LeakySingletonTraits<BrailleControllerImpl> >::get();
 }
 
 scoped_ptr<DisplayState> BrailleControllerImpl::GetDisplayState() {
   return scoped_ptr<DisplayState>(new DisplayState()).Pass();
 }
 
-void BrailleControllerImpl::WriteDots(const std::string& cells) {
+void BrailleControllerImpl::WriteDots(const std::vector<char>& cells) {
 }
 
 void BrailleControllerImpl::AddObserver(BrailleObserver* observer) {
 }
 
 void BrailleControllerImpl::RemoveObserver(BrailleObserver* observer) {
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions