Add android download controller.

content/public/android/java/org/chromium/content/browser/DownloadController.java

Index: content/public/android/java/org/chromium/content/browser/DownloadController.java
diff --git a/content/public/android/java/org/chromium/content/browser/DownloadController.java b/content/public/android/java/org/chromium/content/browser/DownloadController.java
new file mode 100644
index 0000000000000000000000000000000000000000..6d827d27e69f4aeff3e2cf97be486580abbd5c90
--- /dev/null
+++ b/content/public/android/java/org/chromium/content/browser/DownloadController.java
@@ -0,0 +1,80 @@
+// Copyright (c) 2011 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.content.browser;
+
+import java.io.File;
+
+import android.content.Context;
+import android.util.Log;
+import android.webkit.DownloadListener;
+
+import org.chromium.base.CalledByNative;
+
+/**
+ * Java counterpart of android DownloadController.
+ *
+ * Its a singleton class instantiated by the C++ DownloadController.
+ */
+class DownloadController {
+    private static final String LOGTAG = "DownloadController";
+    private static DownloadController sInstance;
+
+    public static DownloadController getInstance() {
+        if (sInstance == null) {
+            sInstance = new DownloadController();
+        }
+        return sInstance;
+    }
+
+    private Context mContext;
+
+    private DownloadController() {
+        nativeInit();
+    }
+
+    private static DownloadListener listenerFromView(ContentView view) {
+        // TODO(nileshagrawal): Implement.
+        return null;
+    }
+
+    public void setContext(Context context) {
+        mContext = context;
+    }
+
+    /**
+     * Notifies the DownloadListener of a new GET download and passes all the information
+     * needed to download the file.
+     *
+     * The DownloadListener is expected to handle the download.
+     */
+    @CalledByNative
+    public void newHttpGetDownload(ContentView view, String url,
+            String userAgent, String contentDisposition, String mimetype,
+            String cookie, long contentLength) {
+        // TODO(nileshagrawal): Implement.
+    }
+
+    /**
+     * Notifies the DownloadListener that a new POST download has started.
+     */
+    @CalledByNative
+    public void onHttpPostDownloadStarted(ContentView view) {
+        // TODO(nileshagrawal): Implement.
+    }
+
+    /**
+     * Notifies the DownloadListener that a POST download completed and passes along info about the
+     * download.
+     */
+    @CalledByNative
+    public void onHttpPostDownloadCompleted(ContentView view, String url,
+            String contentDisposition, String mimetype, String path,
+            long contentLength, boolean successful) {
+        // TODO(nileshagrawal): Implement.
+    }
+
+    // native methods
+    private native void nativeInit();
+}