Upstream Android's PathUtils implementation.

base/android/path_utils.cc

Index: base/android/path_utils.cc
diff --git a/base/android/path_utils.cc b/base/android/path_utils.cc
index dc45c28da622dfbab06c0f3b49b35fff02dd6f71..c46e6693aaff9590e2d5422c56589ca8fcbd9ef2 100644
--- a/base/android/path_utils.cc
+++ b/base/android/path_utils.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -15,16 +15,23 @@ namespace android {
 
 std::string GetDataDirectory() {
   JNIEnv* env = AttachCurrentThread();
-  ScopedJavaLocalRef<jstring> path(env, Java_PathUtils_getDataDirectory(
-      env, base::android::GetApplicationContext()));
-  return base::android::ConvertJavaStringToUTF8(env, path.obj());
+  ScopedJavaLocalRef<jstring> path =
+      Java_PathUtils_getDataDirectory(env, GetApplicationContext());
+  return ConvertJavaStringToUTF8(path);
 }
 
 std::string GetCacheDirectory() {
   JNIEnv* env = AttachCurrentThread();
-  ScopedJavaLocalRef<jstring> path(env, Java_PathUtils_getCacheDirectory(
-      env, base::android::GetApplicationContext()));
-  return base::android::ConvertJavaStringToUTF8(env, path.obj());
+  ScopedJavaLocalRef<jstring> path =
+      Java_PathUtils_getCacheDirectory(env, GetApplicationContext());
+  return ConvertJavaStringToUTF8(path);
+}
+
+std::string GetDownloadsDirectory() {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> path =
+      Java_PathUtils_getDownloadsDirectory(env, GetApplicationContext());
+  return ConvertJavaStringToUTF8(path);
 }
 
 bool RegisterPathUtils(JNIEnv* env) {