Add a basic UI to the Android Blimp client.

blimp/client/android/toolbar.h

Index: blimp/client/android/toolbar.h
diff --git a/blimp/client/android/toolbar.h b/blimp/client/android/toolbar.h
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+// Copyright 2015 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 BLIMP_CLIENT_ANDROID_TOOLBAR_H_
+#define BLIMP_CLIENT_ANDROID_TOOLBAR_H_
+
+#include "base/android/jni_android.h"
+#include "base/macros.h"
+
+class GURL;
+class SkBitmap;
+
+namespace blimp {
+
+// The native component of org.chromium.blimp.toolbar.Toolbar.  This handles
+// marshalling calls between Java and native.  Specifically, this passes calls
+// between Toolbar.java <=> content_lite's NavigationController layer.
+class Toolbar {
+ public:
+  static bool RegisterJni(JNIEnv* env);
+
+  Toolbar(JNIEnv* env, const base::android::JavaParamRef<jobject>& jobj);
+
+  // Methods called from Java via JNI.
+  void Destroy(JNIEnv* env, jobject jobj);
+  void OnUrlTextEntered(JNIEnv* env, jobject jobj, jstring text);
+  void OnReloadPressed(JNIEnv* env, jobject jobj);
+  jboolean OnBackPressed(JNIEnv* env, jobject jobj);
+
+  // TODO(dtrainor): To be called by a the content lite NavigationController.
+  // Should probably be an overridden delegate method so the network code can be
+  // multi platform.
+  void OnNavigationStateChanged(const GURL* url,
+                                const SkBitmap* favicon,
+                                const std::string* title);
+
+ private:
+  virtual ~Toolbar();
+
+  // Reference to the Java object which owns this class.
+  base::android::ScopedJavaGlobalRef<jobject> java_obj_;
+
+  DISALLOW_COPY_AND_ASSIGN(Toolbar);
+};
+
+}  // namespace blimp
+
+#endif  // BLIMP_CLIENT_ANDROID_TOOLBAR_H_