Add some string helper classes.
*re-land with build fix for Clang*
These helper functions mirror some utilities in Chrome, for splitting
strings along whitespace, or reading file contents into a string.
Also remove the hack for skipping the doubly-defined GLX header.
BUG=angleproject:892,angleproject:998
Change-Id: Ife43fbf5035a3be7820460bea1b26d0e632a4fb0
Reviewed-on: https://chromium-review.googlesource.com/272518
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/common/string_utils.h b/src/common/string_utils.h
new file mode 100644
index 0000000..78d1ec0
--- /dev/null
+++ b/src/common/string_utils.h
@@ -0,0 +1,32 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// string_utils:
+// String helper functions.
+//
+
+#ifndef LIBANGLE_STRING_UTILS_H_
+#define LIBANGLE_STRING_UTILS_H_
+
+#include <string>
+#include <vector>
+
+namespace angle
+{
+
+void SplitString(const std::string &input,
+ char delimiter,
+ std::vector<std::string> *tokensOut);
+
+void SplitStringAlongWhitespace(const std::string &input,
+ std::vector<std::string> *tokensOut);
+
+bool HexStringToUInt(const std::string &input, unsigned int *uintOut);
+
+bool ReadFileToString(const std::string &path, std::string *stringOut);
+
+}
+
+#endif // LIBANGLE_STRING_UTILS_H_