Revert r32930 (Add more timing information in the VM to track time...)

runtime/vm/dart_api_impl.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_DART_API_IMPL_H_
 #define VM_DART_API_IMPL_H_
 
 #include "vm/allocation.h"
 #include "vm/native_arguments.h"
 #include "vm/object.h"
-#include "vm/timer.h"
-#include "vm/timer_scope.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, trace_api);
 
 class ApiLocalScope;
 class ApiState;
 class FinalizablePersistentHandle;
 class LocalHandle;
 class PersistentHandle;
@@ skipping 37 matching lines @@
 #define CHECK_ISOLATE_SCOPE(isolate)                                           \
   do {                                                                         \
     Isolate* tmp = (isolate);                                                  \
     CHECK_ISOLATE(tmp);                                                        \
     ApiState* state = tmp->api_state();                                        \
     ASSERT(state);                                                             \
     if (state->top_scope() == NULL) {                                          \
       FATAL1("%s expects to find a current scope. Did you forget to call "     \
            "Dart_EnterScope?", CURRENT_FUNC);                                  \
     }                                                                          \
-  } while (0);                                                                 \
-  NativeToVmTimerScope __temp_isolate_timer__(isolate);
+  } while (0)
 
 #define DARTSCOPE(isolate)                                                     \
   Isolate* __temp_isolate__ = (isolate);                                       \
   CHECK_ISOLATE_SCOPE(__temp_isolate__);                                       \
   HANDLESCOPE(__temp_isolate__);
 
 
 #define RETURN_TYPE_ERROR(isolate, dart_handle, type)                          \
   do {                                                                         \
     const Object& tmp =                                                        \
@@ skipping 193 matching lines @@
   if (isolate->no_callback_scope_depth() != 0) {                               \
     return reinterpret_cast<Dart_Handle>(Api::AcquiredError(isolate));         \
   }                                                                            \
 
 #define ASSERT_CALLBACK_STATE(isolate)                                         \
   ASSERT(isolate->no_callback_scope_depth() == 0)
 
 }  // namespace dart.
 
 #endif  // VM_DART_API_IMPL_H_