DevTools: place DevTools WebContents underneath inspected WebContents.

chrome/browser/ui/views/frame/contents_layout_manager.h

Index: chrome/browser/ui/views/frame/contents_layout_manager.h
diff --git a/chrome/browser/ui/views/frame/contents_layout_manager.h b/chrome/browser/ui/views/frame/contents_layout_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..6f2995ba2910dbf439755b6608dc0eb550ab5082
--- /dev/null
+++ b/chrome/browser/ui/views/frame/contents_layout_manager.h
@@ -0,0 +1,44 @@
+// Copyright 2013 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_VIEWS_FRAME_CONTENTS_LAYOUT_MANAGER_H_
+#define CHROME_BROWSER_UI_VIEWS_FRAME_CONTENTS_LAYOUT_MANAGER_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ui/gfx/insets.h"
+#include "ui/views/layout/layout_manager.h"
+
+// ContentsLayoutManager positions the WebContents and devtools WebContents.
+class ContentsLayoutManager : public views::LayoutManager {
+ public:
+  ContentsLayoutManager(views::View* devtools_view, views::View* contents_view);
+  virtual ~ContentsLayoutManager();
+
+  // Sets the active top margin; both devtools_view and contents_view will be
+  // pushed down vertically by |margin|.
+  void SetActiveTopMargin(int margin);
+
+  // Sets the contents insets from the sides.
+  void SetContentsViewInsets(const gfx::Insets& insets);
+
+  // views::LayoutManager overrides:
+  virtual void Layout(views::View* host) OVERRIDE;
+  virtual gfx::Size GetPreferredSize(views::View* host) OVERRIDE;
+  virtual void Installed(views::View* host) OVERRIDE;
+  virtual void Uninstalled(views::View* host) OVERRIDE;
+
+ private:
+  views::View* devtools_view_;
+  views::View* contents_view_;
+
+  views::View* host_;
+
+  gfx::Insets insets_;
+  int active_top_margin_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentsLayoutManager);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_CONTENTS_LAYOUT_MANAGER_H_