Make base_unittests_apk actually work

This changes the "test" template to create a shared_library (instead of
an executable) on Android. After this, we can actually run
base_unittests with
`build/android/test_runner.py gtest -s base_unnittests`
as normal (though may need to CHROMIUM_OUT_DIR and BUILDTYPE as
appropriate).

This requires adding the following targets:

//testing/android:native_test_native_code
//testing/android:native_test_util
//testing/android:native_test_jni_headers
//tools/android/md5sum:md5sum
//tools/android/md5sum:md5sum_bin
//tools/android/md5sum:md5sum_prepare_dist
//tools/android/md5sum:md5sum_copy_host

Also, makes it so that native executables are stripped (just like shared
libraries). Adds a simple create_native_execuatable_dist template that
sets up a dist directory for the executable (see
build/android/gyp/native_app_dependencies.gyp).

BUG=359249
TBR=rlarocque

Review URL: https://codereview.chromium.org/557463002

Cr-Commit-Position: refs/heads/master@{#294032}

2 files changed, 43 insertions, 0 deletions

diff --git a/testing/android/BUILD.gn b/testing/android/BUILD.gn
new file mode 100644
index 0000000..c26830c
--- /dev/null
+++ b/testing/android/BUILD.gn
@@ -0,0 +1,40 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+# GYP: //testing/android/native_test.gyp:native_test_native_code
+source_set("native_test_native_code") {
+  testonly = true
+  sources = [
+    "native_test_launcher.cc"
+  ]
+  deps = [
+    ":native_test_jni_headers",
+    ":native_test_util",
+    "//base",
+    "//base/test:test_support",
+    "//base/third_party/dynamic_annotations",
+    "//testing/gtest",
+  ]
+}
+
+# GYP: //testing/android/native_test.gyp:native_test_jni_headers
+generate_jni("native_test_jni_headers") {
+  sources = [
+    "java/src/org/chromium/native_test/ChromeNativeTestActivity.java",
+  ]
+  jni_package = "testing"
+}
+
+# GYP: //testing/android/native_test.gyp:native_test_util
+source_set("native_test_util") {
+  sources = [
+    "native_test_util.cc",
+    "native_test_util.h",
+  ]
+  deps = [
+    "//base"
+  ]
+}
diff --git a/testing/android/native_test.gyp b/testing/android/native_test.gyp
index 204ec4b..14f3229 100644
--- a/testing/android/native_test.gyp
+++ b/testing/android/native_test.gyp
@@ -7,6 +7,7 @@
     ['OS=="android"', {
       'targets': [
         {
+          # GN: //testing/android:native_test_native_code
           'target_name': 'native_test_native_code',
           'message': 'building native pieces of native test package',
           'type': 'static_library',
@@ -30,6 +31,7 @@
           ],
         },
         {
+          # GN: //testing/android:native_test_jni_headers
           'target_name': 'native_test_jni_headers',
           'type': 'none',
           'sources': [
@@ -41,6 +43,7 @@
           'includes': [ '../../build/jni_generator.gypi' ],
         },
         {
+          # GN: //testing/android:native_test_util
           'target_name': 'native_test_util',
           'type': 'static_library',
           'sources': [