Ignore rounding error between clip_layer_length_ and scroll_layer_length_

cc/base/math_util.cc

Index: cc/base/math_util.cc
diff --git a/cc/base/math_util.cc b/cc/base/math_util.cc
index 262f6586dbab585a612378f71c0bcd95f0004cc8..c37a60a3826ca50b9cc49d3c4415328f59a6fe84 100644
--- a/cc/base/math_util.cc
+++ b/cc/base/math_util.cc
@@ -817,6 +817,10 @@ ScopedSubnormalFloatDisabler::~ScopedSubnormalFloatDisabler() {
 #endif
 }
 
+bool MathUtil::IsFloatNearlyTheSame(float left, float right) {

[enne (OOO), 2017/04/21 22:54:33]

I'm not sure we need both IsFloatNearlyTheSame and IsNearlyTheSameForTesting and
IsNearlyTheSame.  I think maybe just call this IsFloatNearlyTheSame or expose
IsNearlyTheSame?

+  return IsNearlyTheSame(left, right);
+}
+
 bool MathUtil::IsNearlyTheSameForTesting(float left, float right) {
   return IsNearlyTheSame(left, right);
 }