Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/cocoa/panels/panel_titlebar_view_cocoa.h

-// 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.
-
-#ifndef CHROME_BROWSER_UI_COCOA_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
-#define CHROME_BROWSER_UI_COCOA_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
-
-#import <Cocoa/Cocoa.h>
-
-#import "chrome/browser/ui/cocoa/panels/mouse_drag_controller.h"
-#import "ui/base/cocoa/tracking_area.h"
-
-@class HoverImageButton;
-@class MouseDragController;
-@class PanelWindowControllerCocoa;
-
-// A class that works as a custom titlebar for Panels. It is placed on top of
-// the regular Cocoa titlebar. It's the place for the close button, page
-// favicon, title label and a button to minimize/restore the panel.
-// It also facilitates dragging and minimization of the panels, and changes
-// color as 'new activity' indicator.
-// One way to have custom titlebar would be to use NSBorderlessWindow,
-// but it seems to affect too many other behaviors (for example, it draws shadow
-// differently based on being key window) so it appears easier to simply overlay
-// the standard titlebar.
-
-// This view overlays the titlebar on top. It is used to intercept
-// mouse input to prevent reordering of the other browser windows when clicking
-// on the titlebar (to minimize or reorder) while in a docked collection.
-@interface PanelTitlebarOverlayView : NSView {
- @private
-  IBOutlet PanelWindowControllerCocoa* controller_;
-  BOOL disableReordering_;
-}
-@end
-
-@interface RepaintAnimation : NSAnimation {
- @private
-  NSView* targetView_;
-}
-- (id)initWithView:(NSView*)targetView duration:(double) duration;
-- (void)setCurrentProgress:(NSAnimationProgress)progress;
-@end
-
-@interface PanelTitlebarViewCocoa : NSView
-                                   <NSAnimationDelegate,
-                                    MouseDragControllerClient> {
- @private
-  IBOutlet PanelWindowControllerCocoa* controller_;
-  IBOutlet NSView* icon_;
-  IBOutlet NSTextField* title_;
-  IBOutlet HoverImageButton* minimizeButton_;
-  IBOutlet HoverImageButton* restoreButton_;
-  IBOutlet HoverImageButton* customCloseButton_;
-  // Transparent view on top of entire titlebar. It catches mouse events to
-  // prevent window activation by the system on mouseDown.
-  IBOutlet NSView* overlay_;
-  NSButton* closeButton_;  // Created explicitly, not from NIB. Weak, destroyed
-                           // when view is destroyed, as a subview.
-  ui::ScopedCrTrackingArea closeButtonTrackingArea_;
-  BOOL isDrawingAttention_;
-
-  // "Glint" animation is used in "Draw Attention" mode.
-  base::scoped_nsobject<RepaintAnimation> glintAnimation_;
-  base::scoped_nsobject<NSTimer> glintAnimationTimer_;
-  int glintCounter_;
-
-  // Drag support.
-  base::scoped_nsobject<MouseDragController> dragController_;
-}
-
-// Callbacks from Close, Minimize, and Restore buttons.
-- (void)onCloseButtonClick:(id)sender;
-- (void)onMinimizeButtonClick:(id)sender;
-- (void)onRestoreButtonClick:(id)sender;
-
-// Attaches this view to the controller_'s window as a titlebar.
-- (void)attach;
-
-- (void)setTitle:(NSString*)newTitle;
-- (void)setIcon:(NSView*)newIcon;
-
-- (NSView*)icon;
-
-// Set the visibility of the minimize and restore buttons.
-- (void)setMinimizeButtonVisibility:(BOOL)visible;
-- (void)setRestoreButtonVisibility:(BOOL)visible;
-
-// Should be called when size of the titlebar changes.
-- (void)updateCustomButtonsLayout;
-- (void)updateIconAndTitleLayout;
-
-// Various events that we'll need to redraw our titlebar for.
-- (void)didChangeFrame:(NSNotification*)notification;
-- (void)didChangeMainWindow:(NSNotification*)notification;
-
-// Draw Attention methods - change appearance of titlebar to attract user.
-- (void)drawAttention;
-- (void)stopDrawingAttention;
-- (BOOL)isDrawingAttention;
-- (void)startGlintAnimation;
-- (void)restartGlintAnimation:(NSTimer*)timer;
-- (void)stopGlintAnimation;
-
-@end  // @interface PanelTitlebarView
-
-// Methods which are either only for testing, or only public for testing.
-@interface PanelTitlebarViewCocoa(TestingAPI)
-
-- (PanelWindowControllerCocoa*)controller;
-
-- (NSTextField*)title;
-- (NSButton*)closeButton;
-- (NSButton*)minimizeButton;
-- (NSButton*)restoreButton;
-
-// Simulates click on a close button. Used to test panel closing.
-- (void)simulateCloseButtonClick;
-
-// NativePanelTesting support.
-// |mouseLocation| is in Cocoa's screen coordinates.
-- (void)pressLeftMouseButtonTitlebar:(NSPoint)mouseLocation
-                           modifiers:(int)modifierFlags;
-- (void)releaseLeftMouseButtonTitlebar:(int)modifierFlags;
-- (void)dragTitlebar:(NSPoint)mouseLocation;
-- (void)cancelDragTitlebar;
-- (void)finishDragTitlebar;
-
-@end  // @interface PanelTitlebarViewCocoa(TestingAPI)
-
-#endif  // CHROME_BROWSER_UI_COCOA_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_