Fix presubmit error.

src/x64/assembler-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 380 matching lines @@
   last_pc_ = NULL;
 
 #ifdef GENERATED_CODE_COVERAGE
   InitCoverageLog();
 #endif
 }
 
 
 Assembler::~Assembler() {
   if (own_buffer_) {
-    if (isolate() != NULL && 
+    if (isolate() != NULL &&
         isolate()->assembler_spare_buffer() == NULL &&
         buffer_size_ == kMinimalBufferSize) {
       isolate()->set_assembler_spare_buffer(buffer_);
     } else {
       DeleteArray(buffer_);
     }
   }
 }
 
 
@@ skipping 2759 matching lines @@
   // specially coded on x64 means that it is a relative 32 bit address, as used
   // by branch instructions.
   return (1 << rmode_) & kApplyMask;
 }
 
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64