Change mojo enums to be scoped enums in the generated C++ bindings.

components/arc/test/fake_app_instance.h

 // Copyright 2015 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 COMPONENTS_ARC_TEST_FAKE_APP_INSTANCE_H_
 #define COMPONENTS_ARC_TEST_FAKE_APP_INSTANCE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 25 matching lines @@
     std::string activity_;
 
     DISALLOW_COPY_AND_ASSIGN(Request);
   };
 
   class IconRequest : public Request {
    public:
     IconRequest(const std::string& package,
                 const std::string& activity,
                 ScaleFactor scale_factor)
-        : Request(package, activity), scale_factor_(scale_factor) {}
+        : Request(package, activity),
+          scale_factor_(static_cast<int>(scale_factor)) {}
     ~IconRequest() {}
 
     int scale_factor() const { return scale_factor_; }
 
    private:
     int scale_factor_;
 
     DISALLOW_COPY_AND_ASSIGN(IconRequest);
   };
 
@@ skipping 48 matching lines @@
   int refresh_app_list_count_ = 0;
   // Keeps information about launch requests.
   ScopedVector<Request> launch_requests_;
   // Keeps information about icon load requests.
   ScopedVector<IconRequest> icon_requests_;
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_TEST_FAKE_APP_INSTANCE_H_