Add tools to support gdb and simpleperf for android executables.

Change-Id: I6e7f41df094ae037538ebd61e40385d7e2e9eb26
Reviewed-on: https://skia-review.googlesource.com/6615
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/BUILD.gn b/BUILD.gn
index 05c1e8e..681a788 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1380,6 +1380,28 @@
     }
   }
 
+  if (is_android) {
+    copy("gdbserver") {
+      sources = [
+        "$ndk/$ndk_gdbserver",
+      ]
+      outputs = [
+        "$root_out_dir/gdbserver",
+      ]
+    }
+    if (ndk_simpleperf != "") {
+      copy("simpleperf") {
+        sources = [
+          "$ndk/$ndk_simpleperf",
+          "$ndk/simpleperf/simpleperf_report.py",
+        ]
+        outputs = [
+          "$root_out_dir/{{source_file_part}}",
+        ]
+      }
+    }
+  }
+
   if (skia_enable_gpu) {
     test_app("skslc") {
       sources = [