Add BubbleManager to manage bubbles and ChromeBubbleManager for events.

components/bubble/bubble_delegate.h

Index: components/bubble/bubble_delegate.h
diff --git a/components/bubble/bubble_delegate.h b/components/bubble/bubble_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..09e7f67538e90409f749e2739e008016fa4bbea8
--- /dev/null
+++ b/components/bubble/bubble_delegate.h
@@ -0,0 +1,39 @@
+// 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 COMPONENTS_BUBBLE_BUBBLE_DELEGATE_H_
+#define COMPONENTS_BUBBLE_BUBBLE_DELEGATE_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+
+class BubbleUI;
+
+class BubbleDelegate {
+ public:
+  BubbleDelegate();
+  virtual ~BubbleDelegate();
+
+  // Called to notify the delegate that it is closed.
+  // This is different than hiding the bubble because the delegate will be
+  // cleaned up after this call.
+  virtual void Finalize() = 0;
+
+  // Returning true here means that the bubble will not be shown again after it
+  // is hidden.
+  virtual bool CloseOnHide() = 0;
+
+  // Build UI to represent this bubble.
+  virtual scoped_ptr<BubbleUI> BuildBubbleUI() = 0;
+
+  // Get the context for this bubble. This allows a bubble to be
+  // hidden/closed/shown on the correct events.
+  virtual void* GetContext() = 0;
+
+  base::WeakPtrFactory<BubbleDelegate> weak_ptr_factory;
+
+  DISALLOW_COPY_AND_ASSIGN(BubbleDelegate);
+};
+
+#endif  // COMPONENTS_BUBBLE_BUBBLE_DELEGATE_H_