[Eraser] First pass at removing the notification center panel.

ui/message_center/cocoa/tray_controller.mm

Index: ui/message_center/cocoa/tray_controller.mm
diff --git a/ui/message_center/cocoa/tray_controller.mm b/ui/message_center/cocoa/tray_controller.mm
deleted file mode 100644
index ddbdcc77cdc63bf57badbef9480cd150c539271a..0000000000000000000000000000000000000000
--- a/ui/message_center/cocoa/tray_controller.mm
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2013 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 "ui/message_center/cocoa/tray_controller.h"
-
-#include "ui/base/cocoa/window_size_constants.h"
-#include "ui/base/resource/resource_bundle.h"
-#import "ui/message_center/cocoa/popup_collection.h"
-#import "ui/message_center/cocoa/tray_view_controller.h"
-#include "ui/message_center/message_center_tray.h"
-#include "ui/message_center/message_center_tray_delegate.h"
-
-@interface MCTrayWindow : NSPanel
-@end
-
-@implementation MCTrayWindow
-
-- (BOOL)canBecomeKeyWindow {
-  return YES;
-}
-
-- (void)cancelOperation:(id)sender {
-  [self orderOut:self];
-}
-
-@end
-
-@implementation MCTrayController
-
-- (id)initWithMessageCenterTray:(message_center::MessageCenterTray*)tray {
-  base::scoped_nsobject<MCTrayWindow> window(
-      [[MCTrayWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
-                                      styleMask:NSBorderlessWindowMask |
-                                                NSNonactivatingPanelMask
-                                        backing:NSBackingStoreBuffered
-                                          defer:NO]);
-  if ((self = [super initWithWindow:window])) {
-    tray_ = tray;
-
-    [window setDelegate:self];
-    [window setHasShadow:YES];
-    [window setHidesOnDeactivate:NO];
-    [window setLevel:NSFloatingWindowLevel];
-
-    viewController_.reset([[MCTrayViewController alloc] initWithMessageCenter:
-        tray_->message_center()]);
-    NSView* contentView = [viewController_ view];
-    [window setFrame:[contentView frame] display:NO];
-    [window setContentView:contentView];
-
-    // The global event monitor will close the tray in response to events
-    // delivered to other applications, and -windowDidResignKey: will catch
-    // events within the application.
-    __block MCTrayController* weakSelf = self;
-    clickEventMonitor_ =
-        [NSEvent addGlobalMonitorForEventsMatchingMask:NSLeftMouseDownMask |
-                                                       NSRightMouseDownMask |
-                                                       NSOtherMouseDownMask
-            handler:^(NSEvent* event) {
-                [weakSelf windowDidResignKey:nil];
-            }];
-  }
-  return self;
-}
-
-- (void)dealloc {
-  [NSEvent removeMonitor:clickEventMonitor_];
-  [super dealloc];
-}
-
-- (MCTrayViewController*)viewController {
-  return viewController_.get();
-}
-
-- (void)close {
-  [viewController_ onWindowClosing];
-  [super close];
-}
-
-- (void)showTrayAtRightOf:(NSPoint)rightPoint atLeftOf:(NSPoint)leftPoint {
-  NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
-  NSRect screenFrame = [screen visibleFrame];
-
-  NSRect frame = [[viewController_ view] frame];
-
-  if (rightPoint.x + NSWidth(frame) < NSMaxX(screenFrame)) {
-    frame.origin.x = rightPoint.x;
-    frame.origin.y = rightPoint.y - NSHeight(frame);
-  } else {
-    frame.origin.x = leftPoint.x - NSWidth(frame);
-    frame.origin.y = leftPoint.y - NSHeight(frame);
-  }
-
-  [[self window] setFrame:frame display:YES];
-  [viewController_ scrollToTop];
-  [self showWindow:nil];
-}
-
-- (void)onMessageCenterTrayChanged {
-  [viewController_ onMessageCenterTrayChanged];
-}
-
-- (void)windowDidResignKey:(NSNotification*)notification {
-  // The settings bubble data structures assume that the settings dialog is
-  // visible only for short periods of time: There's a fixed list of permissions
-  // for example.
-  [viewController_ cleanupSettings];
-
-  tray_->HideMessageCenterBubble();
-}
-
-@end