Remove wrench button from panel.

chrome/browser/ui/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_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/cocoa_protocols.h"
 #import "chrome/browser/ui/cocoa/tracking_area.h"
 
 @class CrTrackingArea;
 @class HoverImageButton;
 @class PanelWindowControllerCocoa;
 
 // A class that works as a custom titlebar for Panels. It is placed on top of
 // the regular Cocoa titlebar. We paint theme image on it, and it's
-// the place for the close button, wrench button, page favicon, title label.
+// the place for the close button, page favicon, title label.
 // 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.
 
 // When Drag is cancelled by hitting ESC key, we may still receive
 // the mouseDragged events but should ignore them until the mouse button is
 // released. Use these simple states to track this condition.
@@ skipping 19 matching lines @@
 }
 - (id)initWithView:(NSView*)targetView duration:(double) duration;
 - (void)setCurrentProgress:(NSAnimationProgress)progress;
 @end
 
 @interface PanelTitlebarViewCocoa : NSView<NSAnimationDelegate> {
  @private
   IBOutlet PanelWindowControllerCocoa* controller_;
   IBOutlet NSView* icon_;
   IBOutlet NSTextField* title_;
-  // Since HoverImageButton manages its own alpha value, we wrap it in a subview
-  // so we can animate it with a fade in/fade out effect.
-  IBOutlet NSView* settingsButtonWrapper_;
-  IBOutlet HoverImageButton* settingsButton_;
   // 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.
   ScopedCrTrackingArea closeButtonTrackingArea_;
   PanelDragState dragState_;
   BOOL isDrawingAttention_;
 
   // "Glint" animation is used in "Draw Attention" mode.
@@ skipping 10 matching lines @@
   // Capture the visible frame and full screen bounds used during drag.
   // These are used to prevent dragging the panel under the system menu bar in
   // the way the system drag does.
   NSRect visibleFrameForDrag_;
   NSRect screenBoundsForDrag_;
 }
 
   // Callback from Close button.
 - (void)onCloseButtonClick:(id)sender;
 
-  // Callback from Settings button.
-- (void)onSettingsButtonClick:(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;
 
   // Should be called when size of the titlebar changes.
 - (void)updateCloseButtonLayout;
 - (void)updateIconAndTitleLayout;
 
 // Various events that we'll need to redraw our titlebar for.
 - (void)didChangeFrame:(NSNotification*)notification;
 - (void)didChangeTheme:(NSNotification*)notification;
 - (void)didChangeMainWindow:(NSNotification*)notification;
 
 // Helpers to control title drag operation, called from more then one place.
 // |mouseLocation| is in Cocoa's screen coordinates.
 - (void)startDrag:(NSPoint)mouseLocation;
 - (void)endDrag:(BOOL)cancelled;
 - (void)drag:(NSPoint)mouseLocation;
 
-  // Update the visibility of settings button.
-- (void)updateSettingsButtonVisibility:(BOOL)mouseOverWindow;
-- (void)checkMouseAndUpdateSettingsButtonVisibility;
-
 // Draw Attention methods - change appearance of titlebar to attract user.
 - (void)drawAttention;
 - (void)stopDrawingAttention;
 - (BOOL)isDrawingAttention;
 - (void)startGlintAnimation;
 - (void)restartGlintAnimation:(NSTimer*)timer;
 - (void)stopGlintAnimation;
 
 // Returns width of titlebar when shown in "icon only" mode.
 - (int)iconOnlyWidthInScreenCoordinates;
@@ skipping 15 matching lines @@
 - (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_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_