Add BubbleManager to manage bubbles and ChromeBubbleManager for events.

components/bubble/bubble_controller.cc

+// 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.
+
+#include "components/bubble/bubble_controller.h"
+
+#include "components/bubble/bubble_delegate.h"
+#include "components/bubble/bubble_manager.h"
+#include "components/bubble/bubble_ui.h"
+
+BubbleController::BubbleController(BubbleManager* manager,
+                                   scoped_ptr<BubbleDelegate> delegate)
+    : manager_(manager), delegate_(delegate.Pass()) {
+  DCHECK(manager_);
+  DCHECK(delegate_);
+}
+
+BubbleController::~BubbleController() {
+  if (bubble_ui_)
+    ShouldClose(BUBBLE_CLOSE_FORCED);
+}
+
+bool BubbleController::CloseBubble(BubbleCloseReason reason) {
+  return manager_->CloseBubble(this->AsWeakPtr(), reason);
+}
+
+void BubbleController::Show() {
+  DCHECK(!bubble_ui_);
+  bubble_ui_ = delegate_->BuildBubbleUI();
+  DCHECK(bubble_ui_);
+  bubble_ui_->Show();
+  // TODO(hcarmona): log that bubble was shown.
+}
+
+void BubbleController::UpdateAnchorPosition() {
+  DCHECK(bubble_ui_);
+  bubble_ui_->UpdateAnchorPosition();
+}
+
+bool BubbleController::ShouldClose(BubbleCloseReason reason) {
+  DCHECK(bubble_ui_);
+  if (delegate_->ShouldClose(reason) || reason == BUBBLE_CLOSE_FORCED) {
+    bubble_ui_->Close();

[msw, 2015/08/26 01:42:36]

I wonder if BubbleUI::Close is needed or if its dtor would suffice.

[hcarmona, 2015/08/26 17:25:58]

I like having both |Close| and |Show| because it makes the code more
readable. It's clear what should happen in |Show| and |Close|.

[msw, 2015/08/26 20:29:09]

Acknowledged.

+    bubble_ui_.reset();
+    // TODO(hcarmona): log that bubble was hidden.
+    return true;
+  }
+  return false;
+}