Remove redundant masking of the bits in angle::BitSet when using ternary operators.

src/common/bitset_utils.h

@@ -531,21 +531,27 @@ template <size_t N, typename BitsT, typename ParamT>
 inline angle::BitSetT<N, BitsT, ParamT> operator&(const angle::BitSetT<N, BitsT, ParamT> &lhs,
                                                   const angle::BitSetT<N, BitsT, ParamT> &rhs)
 {
-    return angle::BitSetT<N, BitsT, ParamT>(lhs.bits() & rhs.bits());
+    angle::BitSetT<N, BitsT, ParamT> result(lhs);
+    result &= rhs.bits();
+    return result;
 }
 
 template <size_t N, typename BitsT, typename ParamT>
 inline angle::BitSetT<N, BitsT, ParamT> operator|(const angle::BitSetT<N, BitsT, ParamT> &lhs,
                                                   const angle::BitSetT<N, BitsT, ParamT> &rhs)
 {
-    return angle::BitSetT<N, BitsT, ParamT>(lhs.bits() | rhs.bits());
+    angle::BitSetT<N, BitsT, ParamT> result(lhs);
+    result |= rhs.bits();
+    return result;
 }
 
 template <size_t N, typename BitsT, typename ParamT>
 inline angle::BitSetT<N, BitsT, ParamT> operator^(const angle::BitSetT<N, BitsT, ParamT> &lhs,
                                                   const angle::BitSetT<N, BitsT, ParamT> &rhs)
 {
-    return angle::BitSetT<N, BitsT, ParamT>(lhs.bits() ^ rhs.bits());
+    angle::BitSetT<N, BitsT, ParamT> result(lhs);
+    result ^= rhs.bits();
+    return result;
 }
 
 #endif  // COMMON_BITSETITERATOR_H_

src/libANGLE/renderer/gl/StateManagerGL.cpp

@@ -1605,8 +1605,7 @@ void StateManagerGL::syncState(const gl::Context *context,
         }
     }
 
-    const gl::State::DirtyBits &glAndLocalDirtyBits = (glDirtyBits | mLocalDirtyBits) & bitMask;
-
+    const gl::State::DirtyBits glAndLocalDirtyBits = (glDirtyBits | mLocalDirtyBits) & bitMask;
     if (!glAndLocalDirtyBits.any())
     {
         return;