Run shell tests on android.

shell/shell_test_base_android.cc

Index: shell/shell_test_base_android.cc
diff --git a/shell/shell_test_base_android.cc b/shell/shell_test_base_android.cc
new file mode 100644
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+++ b/shell/shell_test_base_android.cc
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+// 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.
+
+#include "shell/shell_test_base.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "jni/ShellTestBase_jni.h"
+#include "shell/filename_util.h"
+#include "url/gurl.h"
+
+namespace mojo {
+namespace shell {
+namespace test {
+
+namespace {
+
+JNIEnv* InitEnv() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  static bool initialized = false;
+  if (!initialized) {
+    RegisterNativesImpl(env);
+    initialized = true;
+  }
+  return env;
+}
+
+}  // namespace
+
+void ShellTestBase::SetUpTestApplications() {
+  // Extract mojo applications, and set the resolve base URL to the directory
+  // containing those.
+  JNIEnv* env = InitEnv();
+  base::android::ScopedJavaLocalRef<jstring> service_dir(
+      Java_ShellTestBase_extractMojoApplications(
+          env, base::android::GetApplicationContext()));
+  shell_context_.mojo_url_resolver()->SetBaseURL(
+      FilePathToFileURL(base::FilePath(
+          base::android::ConvertJavaStringToUTF8(env, service_dir.obj()))));
+}
+
+}  // namespace test
+}  // namespace shell
+}  // namespace mojo