Fix web-intent-related unit_tests linking issues on Android.

chrome/browser/ui/intents/web_intent_picker_controller_android.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_ANDROID_H_
+#define CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_ANDROID_H_
+
+#include "base/string16.h"
+
+namespace content {
+class WebContentsObserver;
+class WebIntentsDispatcher;
+}
+
+// Minimalist dummy implementation of WebIntentPickerController for Android.
+class WebIntentPickerController {
+ public:
+  explicit WebIntentPickerController(content::WebContentsObserver*) {}
+
+  void SetIntentsDispatcher(content::WebIntentsDispatcher*) {}
+  void ShowDialog(const string16&, const string16&) {}
+};
+
+#endif  // CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_ANDROID_H_