Update to Chromium //base at Chromium commit e3a753f17bac62738b0dbf0b36510f767b081e4b.

mac/foundation_util.mm

Index: mac/foundation_util.mm
diff --git a/mac/foundation_util.mm b/mac/foundation_util.mm
index 27d6e7c4653b50c95037652928361aad9b0a0ff3..bd5d51452dcf6a1d7ec63b9fd60a39a3a2931282 100644
--- a/mac/foundation_util.mm
+++ b/mac/foundation_util.mm
@@ -11,6 +11,7 @@
 #include "base/logging.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_logging.h"
+#include "base/numerics/safe_conversions.h"
 #include "base/strings/sys_string_conversions.h"
 
 #if !defined(OS_IOS)
@@ -430,6 +431,19 @@ FilePath NSStringToFilePath(NSString* str) {
   return FilePath([str fileSystemRepresentation]);
 }
 
+bool CFRangeToNSRange(CFRange range, NSRange* range_out) {
+  if (base::IsValueInRangeForNumericType<decltype(range_out->location)>(
+          range.location) &&
+      base::IsValueInRangeForNumericType<decltype(range_out->length)>(
+          range.length) &&
+      base::IsValueInRangeForNumericType<decltype(range_out->location)>(
+          range.location + range.length)) {
+    *range_out = NSMakeRange(range.location, range.length);
+    return true;
+  }
+  return false;
+}
+
 }  // namespace mac
 }  // namespace base