Initial CL for talking to the WebAPK server to generate WebAPK

chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
new file mode 100644
index 0000000000000000000000000000000000000000..397b3bb217ce4f3976cd70b16cb10735743321e9
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkInstaller.java
@@ -0,0 +1,19 @@
+// Copyright 2016 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.chrome.browser.webapps;
+
+/**
+ * Interface for installing WebAPKs.
+ */
+public interface WebApkInstaller {
+    /**
+     * Installs a WebAPK.
+     * @param filePath File to install.
+     * @param packageName Package name to install WebAPK at.
+     * @return True if the install was started. A "true" return value does not guarantee that the
+     * install succeeds.

[gone, 2016/07/29 21:20:28]

indent so that "install" lines up with "True"

[pkotwicz, 2016/08/02 04:09:37]

Done.

+     */
+    boolean installAsync(String filePath, String packageName);
+}