[Mac] Delete old balloon and Notification Center notification implementations.

chrome/browser/ui/cocoa/notifications/balloon_collection_cocoa.mm

-// 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.
-
-#include "chrome/browser/notifications/balloon_collection_impl.h"
-
-#import <Cocoa/Cocoa.h>
-
-#include "chrome/browser/ui/cocoa/notifications/balloon_view_bridge.h"
-
-Balloon* BalloonCollectionImpl::MakeBalloon(const Notification& notification,
-                                            Profile* profile) {
-  Balloon* balloon = new Balloon(notification, profile, this);
-  balloon->set_view(new BalloonViewBridge());
-  gfx::Size size(layout_.min_balloon_width(), layout_.min_balloon_height());
-  balloon->set_content_size(size);
-  return balloon;
-}
-
-// static
-gfx::Rect BalloonCollectionImpl::GetMacWorkArea() {
-  NSScreen* primary = [[NSScreen screens] objectAtIndex:0];
-  return gfx::Rect(NSRectToCGRect([primary visibleFrame]));
-}
-
-int BalloonCollectionImpl::Layout::InterBalloonMargin() const {
-  return 5;
-}
-
-int BalloonCollectionImpl::Layout::HorizontalEdgeMargin() const {
-  return 5;
-}
-
-int BalloonCollectionImpl::Layout::VerticalEdgeMargin() const {
-  return 0;
-}
-
-bool BalloonCollectionImpl::Layout::NeedToMoveAboveLeftSidePanels() const {
-  return placement_ == VERTICALLY_FROM_TOP_LEFT;
-}
-
-bool BalloonCollectionImpl::Layout::NeedToMoveAboveRightSidePanels() const {
-  return placement_ == VERTICALLY_FROM_TOP_RIGHT;
-}
-
-void BalloonCollectionImpl::PositionBalloons(bool reposition) {
-  // Use an animation context so that all the balloons animate together.
-  [NSAnimationContext beginGrouping];
-  [[NSAnimationContext currentContext] setDuration:0.1f];
-  PositionBalloonsInternal(reposition);
-  [NSAnimationContext endGrouping];
-}
-
-void BalloonCollectionImpl::SetPositionPreference(
-    PositionPreference position) {
-  if (position == DEFAULT_POSITION)
-    position = UPPER_RIGHT;
-
-  // All positioning schemes are vertical, but mac
-  // uses a vertically reversed screen orientation.
-  if (position == UPPER_RIGHT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_BOTTOM_RIGHT);
-  else if (position == UPPER_LEFT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_BOTTOM_LEFT);
-  else if (position == LOWER_LEFT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_TOP_LEFT);
-  else if (position == LOWER_RIGHT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_TOP_RIGHT);
-  else
-    NOTREACHED();
-
-  layout_.ComputeOffsetToMoveAbovePanels();
-  PositionBalloons(true);
-}
-
-// static
-BalloonCollection* BalloonCollection::Create() {
-  return new BalloonCollectionImpl();
-}