Streamline the layout of the BrowserView's children TabContents views....

views/examples/single_split_view_example.h

 // 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 VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
 #define VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
 #pragma once
 
 #include "views/controls/single_split_view.h"
 #include "views/examples/example_base.h"
 
 namespace examples {
 
-class SingleSplitViewExample : public ExampleBase {
+class SingleSplitViewExample : public ExampleBase,
+                               public views::SingleSplitView::Delegate {
  public:
+  class SplitViewResizingGridLayout : public views::GridLayout {
+   public:
+    SplitViewResizingGridLayout(views::View* host,
+                                views::SingleSplitView* single_split_view)
+        : views::GridLayout(host),
+          single_split_view_(single_split_view) {
+    }
+    // views::GridLayout overrides.
+    virtual void Layout(views::View* host) {
+      views::GridLayout::Layout(host);
+      single_split_view_->ResizeViews();
+    }
+   private:
+    views::SingleSplitView* single_split_view_;
+  };
+
   explicit SingleSplitViewExample(ExamplesMain* main)
       : ExampleBase(main) {
   }
 
   virtual ~SingleSplitViewExample() {}
 
   virtual std::wstring GetExampleTitle() {
     return L"Single Split View";
   }
 
   virtual void CreateExampleView(views::View* container) {
     SplittedView* splitted_view_1 = new SplittedView();
     SplittedView* splitted_view_2 = new SplittedView();
 
     single_split_view_ = new views::SingleSplitView(
         splitted_view_1, splitted_view_2,
-        views::SingleSplitView::HORIZONTAL_SPLIT);
+        views::SingleSplitView::HORIZONTAL_SPLIT,
+        this);
 
     splitted_view_1->SetColor(SK_ColorYELLOW, SK_ColorCYAN);
 
-    views::GridLayout* layout = new views::GridLayout(container);
+    views::GridLayout* layout =
+        new SplitViewResizingGridLayout(container, single_split_view_);
     container->SetLayoutManager(layout);
 
     // Add scroll view.
     views::ColumnSet* column_set = layout->AddColumnSet(0);
     column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::FILL, 1,
                           views::GridLayout::USE_PREF, 0, 0);
     layout->StartRow(1, 0);
     layout->AddView(single_split_view_);
   }
 
+  // views::SingleSplitView::Delegate overrides.
+  virtual void SplitHandleMoved(views::SingleSplitView* source) {
+    GetExampleView()->Layout();
+  }
+
  private:
   // SingleSplitView's content, which draws gradient color on background.
   class SplittedView : public views::View {
    public:
     SplittedView() {
       SetColor(SK_ColorRED, SK_ColorGREEN);
     }
 
     virtual gfx::Size GetPreferredSize() {
       return gfx::Size(width(), height());
@@ skipping 18 matching lines @@
 
   // The SinleSplitView to test.
   views::SingleSplitView* single_split_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleSplitViewExample);
 };
 
 }  // namespace examples
 
 #endif  // VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_