Upstream Android's PathUtils implementation.

base/android/java/PathUtils.java

Index: base/android/java/PathUtils.java
diff --git a/base/android/java/PathUtils.java b/base/android/java/PathUtils.java
new file mode 100644
index 0000000000000000000000000000000000000000..c88034b669c5e68b1eae7bd1b9b41a50397a63e0
--- /dev/null
+++ b/base/android/java/PathUtils.java
@@ -0,0 +1,44 @@
+// 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.
+
+package org.chromium.chromeview.base;

[John Grabowski, 2012/02/26 08:25:58]

I don't think org.chromium.chromeview makes sense as a prefix.
"chromeview" seems wrong.
I think debating this issue, aka on chromium-dev, should be a precursor.

[Peter Beverloo, 2012/02/29 15:40:22]

Done in the thread. It's org.chromium.base now.

+
+import android.content.Context;
+import android.os.Environment;
+
+import org.chromium.chromeview.base.CalledByNative;
+
+import java.io.File;
+
+/**
+ * This class provides the path related methods for the native library.
+ */
+class PathUtils {
+
+    /**
+     * @return the private directory that used to store application data.
+     */
+    @CalledByNative
+    public static String getDataDirectory(Context appContext) {
+        // TODO(beverloo) base/ should not know about "chrome": http://b/6057342

[John Grabowski, 2012/02/26 08:25:58]

I think we should try a little harder to not violate layering on the 1st java
CL.

[klobag.chromium, 2012/02/27 21:38:59]

I actually don't think this violates the layering. This just gives a name to the
directory. It is similar as TempFileName() in file_util_posix. If we don't want
to always call "chrome", we can call "chromium" for the non GOOGLE_CHROME_BUILD
case.

On 2012/02/26 08:25:58, John Grabowski wrote:

+        return appContext.getDir("chrome", Context.MODE_PRIVATE).getPath();
+    }
+
+    /**
+     * @return the cache directory.
+     */
+    @CalledByNative
+    public static String getCacheDirectory(Context appContext) {
+        return appContext.getCacheDir().getPath();
+    }
+
+    /**
+     * @return the public downloads directory.
+     */
+    @CalledByNative
+    public static String getDownloadsDirectory(Context appContext) {
+        return Environment.getExternalStoragePublicDirectory(
+                Environment.DIRECTORY_DOWNLOADS).getPath();
+    }
+}