Merge latest changes from http://www.netlib.org/fp/dtoa.c into dtoa.cc

base/third_party/dmg_fp/float_precision_crash.patch

Index: base/third_party/dmg_fp/float_precision_crash.patch
diff --git a/base/third_party/dmg_fp/float_precision_crash.patch b/base/third_party/dmg_fp/float_precision_crash.patch
deleted file mode 100644
index df64e7e0c157f1a80c059ee37bb87753941a0927..0000000000000000000000000000000000000000
--- a/base/third_party/dmg_fp/float_precision_crash.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/base/third_party/dmg_fp/dtoa.cc b/base/third_party/dmg_fp/dtoa.cc
-index 3f7e794..3312fa4 100644
---- dtoa.cc
-+++ dtoa.cc
-@@ -3891,7 +3891,7 @@ dtoa
- 				goto no_digits;
- 			goto one_digit;
- 			}
--		for(i = 1;; i++, dval(&u) *= 10.) {
-+		for(i = 1; i <= k + 1; i++, dval(&u) *= 10.) {
- 			L = (Long)(dval(&u) / ds);
- 			dval(&u) -= L*ds;
- #ifdef Check_FLT_ROUNDS