Instant: Use only one hidden WebContents per profile.

chrome/browser/ui/cocoa/browser_window_controller_private.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_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_
 
 #import "chrome/browser/ui/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)
 
 // Create the appropriate tab strip controller based on whether or not side
 // tabs are enabled. Replaces the current controller.
@@ skipping 119 matching lines @@
 
 // Allows/prevents bar visibility locks and releases from updating the visual
 // state. Enabling makes changes instantaneously; disabling cancels any
 // timers/animation.
 - (void)enableBarVisibilityUpdates;
 - (void)disableBarVisibilityUpdates;
 
 // The opacity for the toolbar divider; 0 means that it shouldn't be shown.
 - (CGFloat)toolbarDividerOpacity;
 
-// Returns YES if instant results are being shown under the omnibox.
+// Returns YES if Instant results are being shown under the omnibox.
 - (BOOL)isShowingInstantResults;
 
-// Updates the content offets of the tab strip controller and the previewable
+// Updates the content offets of the tab strip controller and the overlayable
 // contents controller. This is used to adjust the overlap between those views
 // and the bookmark bar.
 - (void)updateContentOffsets;
 
 // Ensures the z-order of subviews is correct.
 - (void)updateSubviewZOrder:(BOOL)inPresentationMode;
 
 @end  // @interface BrowserWindowController(Private)
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_