Exposes SkipPrefix s.t. it can be used by gmock (by Vlad Losev).

include/gtest/internal/gtest-internal.h

@@ -604,6 +604,11 @@ TestInfo* MakeAndRegisterTestInfo(
     TearDownTestCaseFunc tear_down_tc,
     TestFactoryBase* factory);
 
+// If *pstr starts with the given prefix, modifies *pstr to be right
+// past the prefix and returns true; otherwise leaves *pstr unchanged
+// and returns false.  None of pstr, *pstr, and prefix can be NULL.
+bool SkipPrefix(const char* prefix, const char** pstr);
+
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
 // State of the definition of a type-parameterized test case.