Add back ARMv7 NEON optimization for TransformationMatrix::multiply

third_party/WebKit/Source/platform/transforms/TransformationMatrix.h

 /*
  * Copyright (C) 2005, 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 39 matching lines @@
 #define TRANSFORMATION_MATRIX_USE_X86_64_SSE2
 #endif
 
 // TransformationMatrix must not be allocated on Oilpan's heap since
 // Oilpan doesn't (yet) have an ability to allocate the TransformationMatrix
 // with 16-byte alignment. PartitionAlloc has the ability.
 class PLATFORM_EXPORT TransformationMatrix {
   USING_FAST_MALLOC(TransformationMatrix);
 
  public:
-#if defined(TRANSFORMATION_MATRIX_USE_X86_64_SSE2)
+#if defined(TRANSFORMATION_MATRIX_USE_X86_64_SSE2) || CPU(ARM) && CPU(ARM_NEON)
   typedef WTF_ALIGNED(double, Matrix4[4][4], 16);
 #else
   typedef double Matrix4[4][4];
 #endif
 
   static std::unique_ptr<TransformationMatrix> create() {
     return makeUnique<TransformationMatrix>();
   }
   static std::unique_ptr<TransformationMatrix> create(
       const TransformationMatrix& t) {
@@ skipping 419 matching lines @@
   Matrix4 m_matrix;
 };
 
 // Redeclared here to avoid ODR issues.
 // See platform/testing/TransformPrinters.h.
 void PrintTo(const TransformationMatrix&, std::ostream*);
 
 }  // namespace blink
 
 #endif  // TransformationMatrix_h