[compiler-rt] Rename FuzzedDataProvider.h to .hpp and other minor changes.

Summary:
.hpp makes more sense for this header as it's C++ only, plus it
contains the actual implementation.

Reviewers: Dor1s

Reviewed By: Dor1s

Subscribers: kubamracek, dberris, mgorny, delcypher, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D65812

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@368054 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tests/FuzzedDataProviderUnittest.cpp b/tests/FuzzedDataProviderUnittest.cpp
index 0989ec9..36f2090 100644
--- a/tests/FuzzedDataProviderUnittest.cpp
+++ b/tests/FuzzedDataProviderUnittest.cpp
@@ -6,7 +6,7 @@
 #include <cstdint>
 #include <cstdlib>
 
-#include <fuzzer/FuzzedDataProvider.h>
+#include <fuzzer/FuzzedDataProvider.hpp>
 
 // The test is intentionally extensive, as behavior of |FuzzedDataProvider| must
 // not be broken, given than many fuzz targets depend on it. Changing the
diff --git a/utils/FuzzedDataProvider.h b/utils/FuzzedDataProvider.h
index e82f441..dd2ea20 100644
--- a/utils/FuzzedDataProvider.h
+++ b/utils/FuzzedDataProvider.h
@@ -5,6 +5,8 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
+// This a temporary copy of compiler-rt/include/fuzzer/FuzzedDataProvider.hpp.
+// TODO(mmoroz@chromium.org): delete this copy.
 // A single header library providing an utility class to break up an array of
 // bytes. Whenever run on the same input, provides the same output, as long as
 // its methods are called in the same order, with the same arguments.