(5) Rename files to snake_case: install forwarding headers

Mechanically generated with this command:

tools_webrtc/do-renames.sh install all-renames.txt && git cl format

Bug: webrtc:10159
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: Ic8e99f71f2da62e5c99863c6d24a8cfe311466cd
Reviewed-on: https://webrtc-review.googlesource.com/c/115682
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26227}
diff --git a/examples/androidnativeapi/BUILD.gn b/examples/androidnativeapi/BUILD.gn
index 2d0438b..22f70c1 100644
--- a/examples/androidnativeapi/BUILD.gn
+++ b/examples/androidnativeapi/BUILD.gn
@@ -39,6 +39,7 @@
     sources = [
       "jni/android_call_client.cc",
       "jni/android_call_client.h",
+      "jni/androidcallclient.h",
       "jni/onload.cc",
     ]
 
diff --git a/examples/androidnativeapi/jni/androidcallclient.h b/examples/androidnativeapi/jni/androidcallclient.h
new file mode 100644
index 0000000..795fb71
--- /dev/null
+++ b/examples/androidnativeapi/jni/androidcallclient.h
@@ -0,0 +1,19 @@
+/*
+ *  Copyright 2019 The WebRTC 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 in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef EXAMPLES_ANDROIDNATIVEAPI_JNI_ANDROIDCALLCLIENT_H_
+#define EXAMPLES_ANDROIDNATIVEAPI_JNI_ANDROIDCALLCLIENT_H_
+
+// TODO(bugs.webrtc.org/10159): Remove this files once downstream projects have
+// been updated to include the new path.
+
+#include "examples/androidnativeapi/jni/android_call_client.h"
+
+#endif  // EXAMPLES_ANDROIDNATIVEAPI_JNI_ANDROIDCALLCLIENT_H_