Remove some uses of STL map.

runtime/vm/profiler_service.cc

 // Copyright (c) 2015, 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.
 
 #include "vm/profiler_service.h"
 
 #include "vm/growable_array.h"
 #include "vm/hash_map.h"
 #include "vm/log.h"
 #include "vm/native_symbol.h"
@@ skipping 524 matching lines @@
     ASSERT(!function.IsNull());
     ProfileFunction* profile_function = Lookup(function);
     if (profile_function != NULL) {
       return profile_function;
     }
     return Add(function);
   }
 
   ProfileFunction* Lookup(const Function& function) {
     ASSERT(!function.IsNull());
-    return function_hash_.Lookup(&function);
+    return function_hash_.LookupValue(&function);
   }
 
   ProfileFunction* GetUnknown() {
     ASSERT(unknown_function_ != NULL);
     return unknown_function_;
   }
 
   // No protection against being called more than once for the same tag_id.
   ProfileFunction* AddTag(uword tag_id, const char* name) {
     // TODO(johnmccutchan): Canonicalize ProfileFunctions for tags.
@@ skipping 2304 matching lines @@
   // Disable thread interrupts while processing the buffer.
   DisableThreadInterruptsScope dtis(thread);
 
   ClearProfileVisitor clear_profile(isolate);
   sample_buffer->VisitSamples(&clear_profile);
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart