Make mojo dart controller depend on tonic and get building without wtf

tonic/dart_state.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 SKY_ENGINE_TONIC_DART_STATE_H_
 #define SKY_ENGINE_TONIC_DART_STATE_H_
 
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "dart/runtime/include/dart_api.h"
 #include "tonic/dart_api_scope.h"
 #include "tonic/dart_isolate_scope.h"
 #include "tonic/dart_persistent_value.h"
 
 namespace blink {
 class DartClassLibrary;
 class DartExceptionFactory;
 class DartLibraryLoader;
-class DartStringCache;
 class DartTimerHeap;
 
 // DartState represents the state associated with a given Dart isolate. The
 // lifetime of this object is controlled by the DartVM. If you want to hold a
 // reference to a DartState instance, please hold a base::WeakPtr<DartState>.
 //
 // DartState is analogous to gin::PerIsolateData and JSC::ExecState.
 class DartState : public base::SupportsUserData {
  public:
   class Scope {
@@ skipping 13 matching lines @@
   static DartState* Current();
 
   base::WeakPtr<DartState> GetWeakPtr();
 
   Dart_Isolate isolate() { return isolate_; }
   void SetIsolate(Dart_Isolate isolate);
 
   DartClassLibrary& class_library() { return *class_library_; }
   DartExceptionFactory& exception_factory() { return *exception_factory_; }
   DartLibraryLoader& library_loader() { return *library_loader_; }
-  DartStringCache& string_cache() { return *string_cache_; }
   DartTimerHeap& timer_heap() { return *timer_heap_; }
 
   Dart_Handle index_handle() { return index_handle_.value(); }
 
   virtual void DidSetIsolate() {}
 
  private:
   Dart_Isolate isolate_;
   std::unique_ptr<DartClassLibrary> class_library_;
   std::unique_ptr<DartExceptionFactory> exception_factory_;
   std::unique_ptr<DartLibraryLoader> library_loader_;
-  std::unique_ptr<DartStringCache> string_cache_;
   std::unique_ptr<DartTimerHeap> timer_heap_;
   DartPersistentValue index_handle_;
 
  protected:
   base::WeakPtrFactory<DartState> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DartState);
 };
 
 }  // namespace blink
 
 #endif  // SKY_ENGINE_TONIC_DART_STATE_H_