Simplify ConfigureHeap and change --max_new_space_size to --max_semi_space_size.

src/spaces.h

 // Copyright 2011 the V8 project 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 V8_SPACES_H_
 #define V8_SPACES_H_
 
 #include "allocation.h"
 #include "hashmap.h"
 #include "list.h"
@@ skipping 2399 matching lines @@
  public:
   // Constructor.
   explicit NewSpace(Heap* heap)
     : Space(heap, NEW_SPACE, NOT_EXECUTABLE),
       to_space_(heap, kToSpace),
       from_space_(heap, kFromSpace),
       reservation_(),
       inline_allocation_limit_step_(0) {}
 
   // Sets up the new space using the given chunk.
-  bool SetUp(int reserved_semispace_size_, int max_semispace_size);
+  bool SetUp(int reserved_semispace_size_, int max_semi_space_size);
 
   // Tears down the space.  Heap memory was not allocated by the space, so it
   // is not deallocated here.
   void TearDown();
 
   // True if the space has been set up but not torn down.
   bool HasBeenSetUp() {
     return to_space_.HasBeenSetUp() && from_space_.HasBeenSetUp();
   }
 
@@ skipping 565 matching lines @@
   }
   // Must be small, since an iteration is used for lookup.
   static const int kMaxComments = 64;
 };
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SPACES_H_