Initial switch to Chromium-style CHECK_* and DCHECK_* macros.

src/compiler/ia32/instruction-selector-ia32.cc

Index: src/compiler/ia32/instruction-selector-ia32.cc
diff --git a/src/compiler/ia32/instruction-selector-ia32.cc b/src/compiler/ia32/instruction-selector-ia32.cc
index 233fa3767044ba83cac3fe52ceafe3c99e222916..b81210a7050be051887206f2730dca5f647ffb7d 100644
--- a/src/compiler/ia32/instruction-selector-ia32.cc
+++ b/src/compiler/ia32/instruction-selector-ia32.cc
@@ -370,8 +370,8 @@ static void VisitBinop(InstructionSelector* selector, Node* node,
     outputs[output_count++] = g.DefineAsRegister(cont->result());
   }
 
-  DCHECK_NE(0, input_count);
-  DCHECK_NE(0, output_count);
+  DCHECK_NE(0u, input_count);
+  DCHECK_NE(0u, output_count);
   DCHECK_GE(arraysize(inputs), input_count);
   DCHECK_GE(arraysize(outputs), output_count);