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diff --git a/chrome/browser/cocoa/browser_window_controller_private.h b/chrome/browser/cocoa/browser_window_controller_private.h
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+// Copyright (c) 2010 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_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_
+#define CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_
+
+#import "chrome/browser/cocoa/browser_window_controller.h"
+
+
+// Private methods for the |BrowserWindowController|. This category should
+// contain the private methods used by different parts of the BWC; private
+// methods used only by single parts should be declared in their own file.
+// TODO(viettrungluu): [crbug.com/35543] work on splitting out stuff from the
+// BWC, and figuring out which methods belong here (need to unravel
+// "dependencies").
+@interface BrowserWindowController(Private)
+
+// Saves the window's position in the local state preferences.
+- (void)saveWindowPositionIfNeeded;
+
+// Saves the window's position to the given pref service.
+- (void)saveWindowPositionToPrefs:(PrefService*)prefs;
+
+// We need to adjust where sheets come out of the window, as by default they
+// erupt from the omnibox, which is rather weird.
+- (NSRect)window:(NSWindow*)window
+    willPositionSheet:(NSWindow*)sheet
+            usingRect:(NSRect)defaultSheetRect;
+
+// Assign a theme to the window.
+- (void)setTheme;
+
+// Repositions the window's subviews. From the top down: toolbar, normal
+// bookmark bar (if shown), infobar, NTP detached bookmark bar (if shown),
+// content area, download shelf (if any).
+- (void)layoutSubviews;
+
+// Find the total height of the floating bar (in fullscreen mode). Safe to call
+// even when not in fullscreen mode.
+- (CGFloat)floatingBarHeight;
+
+// Lays out the tab strip at the given maximum y-coordinate, with the given
+// width, possibly for fullscreen mode; returns the new maximum y (below the tab
+// strip). This is safe to call even when there is no tab strip.
+- (CGFloat)layoutTabStripAtMaxY:(CGFloat)maxY
+                          width:(CGFloat)width
+                     fullscreen:(BOOL)fullscreen;
+
+// Lays out the toolbar (or just location bar for popups) at the given maximum
+// y-coordinate, with the given width; returns the new maximum y (below the
+// toolbar).
+- (CGFloat)layoutToolbarAtMaxY:(CGFloat)maxY width:(CGFloat)width;
+
+// Returns YES if the bookmark bar should be placed below the infobar, NO
+// otherwise.
+- (BOOL)placeBookmarkBarBelowInfoBar;
+
+// Lays out the bookmark bar at the given maximum y-coordinate, with the given
+// width; returns the new maximum y (below the bookmark bar). Note that one must
+// call it with the appropriate |maxY| which depends on whether or not the
+// bookmark bar is shown as the NTP bubble or not (use
+// |-placeBookmarkBarBelowInfoBar|).
+- (CGFloat)layoutBookmarkBarAtMaxY:(CGFloat)maxY width:(CGFloat)width;
+
+// Lay out the view which draws the background for the floating bar when in
+// fullscreen mode, with the given (minimum) y-coordinate, width, height, and
+// fullscreen-mode-status. Should be called even when not in fullscreen mode to
+// hide the backing view.
+- (void)layoutFloatingBarBackingViewAtY:(CGFloat)y
+                                  width:(CGFloat)width
+                                 height:(CGFloat)height
+                             fullscreen:(BOOL)fullscreen;
+
+// Lays out the infobar at the given maximum y-coordinate, with the given width;
+// returns the new maximum y (below the infobar).
+- (CGFloat)layoutInfoBarAtMaxY:(CGFloat)maxY width:(CGFloat)width;
+
+// Lays out the download shelf, if there is one, at the given minimum
+// y-coordinate, with the given width; returns the new minimum y (above the
+// download shelf). This is safe to call even if there is no download shelf.
+- (CGFloat)layoutDownloadShelfAtMinY:(CGFloat)minY width:(CGFloat)width;
+
+// Lays out the tab content area between the given minimum and maximum
+// y-coordinates, with the given width.
+- (void)layoutTabContentAreaAtMinY:(CGFloat)minY
+                              maxY:(CGFloat)maxY
+                             width:(CGFloat)width;
+
+// Should we show the normal bookmark bar?
+- (BOOL)shouldShowBookmarkBar;
+
+// Is the current page one for which the bookmark should be shown detached *if*
+// the normal bookmark bar is not shown?
+- (BOOL)shouldShowDetachedBookmarkBar;
+
+// Sets the toolbar's height to a value appropriate for the given compression.
+// Also adjusts the bookmark bar's height by the opposite amount in order to
+// keep the total height of the two views constant.
+- (void)adjustToolbarAndBookmarkBarForCompression:(CGFloat)compression;
+
+// Adjust the UI when entering or leaving fullscreen mode.
+- (void)adjustUIForFullscreen:(BOOL)fullscreen;
+
+@end  // @interface BrowserWindowController(Private)
+
+
+#endif  // CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_