Upstream iOS web code.

ios/web/public/string_util.h

Index: ios/web/public/string_util.h
diff --git a/ios/web/public/string_util.h b/ios/web/public/string_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..b5b23b3897442fb86ad54c6fbdf04520f9437c25
--- /dev/null
+++ b/ios/web/public/string_util.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_WEB_PUBLIC_STRING_UTIL_H_
+#define IOS_WEB_PUBLIC_STRING_UTIL_H_
+
+#include "base/strings/string16.h"
+
+namespace web {
+
+// Truncates |contents| to |length|.
+// Returns a string terminated at the last space to ensure no words are
+// clipped.
+// Note: This function uses spaces as word boundaries and may not handle all
+// languages correctly.
+base::string16 GetStringByClippingLastWord(const base::string16& contents,

[stuartmorgan, 2014/12/04 23:22:58]

We should revisit this at some point to figure out if we can put it somewhere
better than web; it's pretty random a part of web/public/

[droger, 2014/12/09 13:14:43]

I agree.
This function has only one caller, and it is in translate.
It was originally in translate, but Shreyas moved it to chrome/common here:
https://chromereviews.googleplex.com/80307013/

I tried to move it back to translate, but apparently there was a discussion it
was decided to put it in web. See comments here:
https://chromereviews.googleplex.com/96607013/diff/180001/components/translat...

+                                           size_t length);
+
+}  // namespace web
+
+#endif  // IOS_WEB_PUBLIC_STRING_UTIL_H_