Mac: Make devtools window dockable.

chrome/browser/cocoa/tab_contents_controller.h

 // Copyright (c) 2009 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_TAB_CONTENTS_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_TAB_CONTENTS_CONTROLLER_H_
 
 #include <Cocoa/Cocoa.h>
 
 class TabContents;
 class TabContentsCommandObserver;
 class TabStripModel;
 
 // A class that controls the web contents of a tab. It manages displaying the
-// native view for a given TabContents in |contentsBox_|. Note that just
-// creating the class does not display the view in |contentsBox_|. We defer
-// inserting it until the box is the correct size to avoid multiple resize
-// messages to the renderer. You must call |-ensureContentsVisible| to display
-// the render widget host view.
+// native view for a given TabContents and optionally its docked devtools in
+// |contentsContainer_|.
+// Note that just creating the class does not display the view in
+// |contentsContainer_|. We defer inserting it until the box is the correct size
+// to avoid multiple resize messages to the renderer. You must call
+// |-ensureContentsVisible| to display the render widget host view.
 
 @interface TabContentsController : NSViewController {
  @private
   TabContentsCommandObserver* observer_;  // nil if |commands_| is nil
   TabContents* contents_;  // weak
 
-  IBOutlet NSBox* contentsBox_;
+  IBOutlet NSSplitView* contentsContainer_;
 }
 
 // Create the contents of a tab represented by |contents| and loaded from the
 // nib given by |name|.
 - (id)initWithNibName:(NSString*)name
              contents:(TabContents*)contents;
 
 // Called when the tab contents is the currently selected tab and is about to be
 // removed from the view hierarchy.
 - (void)willBecomeUnselectedTab;
 
 // Called when the tab contents is about to be put into the view hierarchy as
 // the selected tab. Handles things such as ensuring the toolbar is correctly
 // enabled.
 - (void)willBecomeSelectedTab;
 
 // Call when the tab view is properly sized and the render widget host view
 // should be put into the view hierarchy.
 - (void)ensureContentsVisible;
 
 // Called when the tab contents is updated in some non-descript way (the
 // notification from the model isn't specific). |updatedContents| could reflect
 // an entirely new tab contents object.
 - (void)tabDidChange:(TabContents*)updatedContents;
 
+// Shows |devToolsContents| in a split view, or removes the bottom view in the
+// split viewif |devToolsContents| is NULL.
+// TODO(thakis): Either move this to tab_window or move infobar handling to here
+// too -- http://crbug.com/31633 .
+- (void)showDevToolsContents:(TabContents*)devToolsContents;
+
+// Returns the height required by devtools and divider, or 0 if no devtools are
+// docked to the tab.
+- (CGFloat)devToolsHeight;
 @end
 
 #endif  // CHROME_BROWSER_COCOA_TAB_CONTENTS_CONTROLLER_H_