Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core)

Source/wtf/Alignment.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 21 matching lines @@
     #define WTF_ALIGN_OF(type) __alignof__(type)
     #define WTF_ALIGNED(variable_type, variable, n) variable_type variable __attribute__((__aligned__(n)))
 #elif COMPILER(MSVC)
     #define WTF_ALIGN_OF(type) __alignof(type)
     #define WTF_ALIGNED(variable_type, variable, n) __declspec(align(n)) variable_type variable
 #else
     #error WTF_ALIGN macros need alignment control.
 #endif
 
 #if COMPILER(GCC)
-    typedef char __attribute__((__may_alias__)) AlignedBufferChar; 
+    typedef char __attribute__((__may_alias__)) AlignedBufferChar;
 #else
-    typedef char AlignedBufferChar; 
+    typedef char AlignedBufferChar;
 #endif
 
     template<size_t size, size_t alignment> struct AlignedBuffer;
     template<size_t size> struct AlignedBuffer<size, 1> { AlignedBufferChar buffer[size]; };
     template<size_t size> struct AlignedBuffer<size, 2> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 2);  };
     template<size_t size> struct AlignedBuffer<size, 4> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 4);  };
     template<size_t size> struct AlignedBuffer<size, 8> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 8);  };
     template<size_t size> struct AlignedBuffer<size, 16> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 16); };
     template<size_t size> struct AlignedBuffer<size, 32> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 32); };
     template<size_t size> struct AlignedBuffer<size, 64> { WTF_ALIGNED(AlignedBufferChar, buffer[size], 64); };
 
     template <size_t size, size_t alignment>
     void swap(AlignedBuffer<size, alignment>& a, AlignedBuffer<size, alignment>& b)
     {
         for (size_t i = 0; i < size; ++i)
             std::swap(a.buffer[i], b.buffer[i]);
     }
 
     template <uintptr_t mask>
     inline bool isAlignedTo(const void* pointer)
     {
         return !(reinterpret_cast<uintptr_t>(pointer) & mask);
     }
 }
 
 #endif // WTF_Alignment_h