Replace remaining ASSERT with DCHECK|DCHECK_FOO in modules

third_party/WebKit/Source/platform/wtf/dtoa/fixed-dtoa.cc

 // Copyright 2010 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 222 matching lines @@
     static void FillFractionals(uint64_t fractionals, int exponent,
                                 int fractional_count, Vector<char> buffer,
                                 int* length, int* decimal_point) {
         DCHECK_LE(-128, exponent);
         DCHECK_LE(exponent, 0);
         // 'fractionals' is a fixed-point number, with binary point at bit
         // (-exponent). Inside the function the non-converted remainder of fractionals
         // is a fixed-point number, with binary point at bit 'point'.
         if (-exponent <= 64) {
             // One 64 bit number is sufficient.
-            DCHECK(fractionals >> 56 == 0);
+            DCHECK_EQ(fractionals >> 56, 0UL);
             int point = -exponent;
             for (int i = 0; i < fractional_count; ++i) {
                 if (fractionals == 0) break;
                 // Instead of multiplying by 10 we multiply by 5 and adjust the point
                 // location. This way the fractionals variable will not overflow.
                 // Invariant at the beginning of the loop: fractionals < 2^point.
                 // Initially we have: point <= 64 and fractionals < 2^56
                 // After each iteration the point is decremented by one.
                 // Note that 5^3 = 125 < 128 = 2^7.
                 // Therefore three iterations of this loop will not overflow fractionals
@@ skipping 146 matching lines @@
             // The string is empty and the decimal_point thus has no importance. Mimick
             // Gay's dtoa and and set it to -fractional_count.
             *decimal_point = -fractional_count;
         }
         return true;
     }
 
 }  // namespace double_conversion
 
 } // namespace WTF