updated .fp file headers

Bug: skia:
Change-Id: I9c39622f34e803a706acd04372be569667380661
Reviewed-on: https://skia-review.googlesource.com/102204
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/sksl/SkSLHCodeGenerator.h b/src/sksl/SkSLHCodeGenerator.h
index fa5544a..c6031b2 100644
--- a/src/sksl/SkSLHCodeGenerator.h
+++ b/src/sksl/SkSLHCodeGenerator.h
@@ -16,16 +16,10 @@
 #include <cctype>
 
 constexpr const char* kFragmentProcessorHeader =
-R"(/*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/*
- * This file was autogenerated from %s.fp; do not modify.
- */
+R"(
+/**************************************************************************************************
+ *** This file was autogenerated from %s.fp; do not modify.
+ **************************************************************************************************/
 )";
 
 namespace SkSL {
@@ -45,6 +39,8 @@
         return String::printf("f%c%s", toupper(varName[0]), varName + 1);
     }
 
+    static String GetHeader(const Program& program, ErrorReporter& errors);
+
 private:
     void writef(const char* s, va_list va) SKSL_PRINTF_LIKE(2, 0);