Add BubbleManager to manage bubbles and ChromeBubbleManager for events.

chrome/browser/ui/chrome_bubble_manager.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 "chrome/browser/ui/chrome_bubble_manager.h"
+
+#include "content/public/browser/browser_thread.h"
+
+ChromeBubbleManager::ChromeBubbleManager() {}
+
+ChromeBubbleManager::~ChromeBubbleManager() {}
+
+void ChromeBubbleManager::FullscreenToggle() {
+  CloseAllBubbles(BUBBLE_CLOSE_FULLSCREEN);
+  // Any bubble that didn't close should update its anchor position.
+  UpdateAllBubbleAnchors();
+}
+
+void ChromeBubbleManager::TabBlur() {
+  CloseAllBubbles(BUBBLE_CLOSE_TABSWITCH);
+}
+
+void ChromeBubbleManager::TabFocus() {

[hcarmona, 2015/08/18 02:25:02]

Does the bubble manager need to do anything when a tab is focused again?

[msw, 2015/08/18 17:26:20]

It shouldn't need to do anything, afaik.

[hcarmona, 2015/08/18 23:08:48]

Then, I'll go ahead and remove this function. :-)

+  // TODO(hcarmona): What should bubbles do, if anything?
+}
+
+void ChromeBubbleManager::TabDetached() {
+  CloseAllBubbles(BUBBLE_CLOSE_TABDETACHED);
+  // Any bubble that didn't close should update its anchor position.
+  UpdateAllBubbleAnchors();
+}
+
+void ChromeBubbleManager::NavigationEntryCommitted() {
+  CloseAllBubbles(BUBBLE_CLOSE_NAVIGATION);
+}
+
+void ChromeBubbleManager::ShowBubbleUI(
+    base::WeakPtr<BubbleController> controller) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  BubbleManager::ShowBubbleUI(controller);
+}
+
+bool ChromeBubbleManager::ShouldClose(
+    base::WeakPtr<BubbleController> controller,
+    BubbleCloseReason reason) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  return BubbleManager::ShouldClose(controller, reason);
+}
+
+void ChromeBubbleManager::UpdateAnchorPosition(
+    base::WeakPtr<BubbleController> controller) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  BubbleManager::UpdateAnchorPosition(controller);
+}