Custom frame UI for platform apps on Windows.

chrome/browser/ui/views/extensions/shell_window_views.cc

Index: chrome/browser/ui/views/extensions/shell_window_views.cc
diff --git a/chrome/browser/ui/views/extensions/shell_window_views.cc b/chrome/browser/ui/views/extensions/shell_window_views.cc
index 0f2936a315e9ff673debd3c0378078711bbb9775..9305b0b00fdb6bf6fefc77286e3cd7c72c3d196b 100644
--- a/chrome/browser/ui/views/extensions/shell_window_views.cc
+++ b/chrome/browser/ui/views/extensions/shell_window_views.cc
@@ -8,6 +8,13 @@
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/common/extensions/extension.h"
 #include "ui/views/widget/widget.h"
+#include "ui/gfx/path.h"
+#include "ui/gfx/scoped_sk_region.h"
+#include "chrome/browser/ui/extensions/native_shell_frame.h"
+#if defined(OS_WIN)
+#include "content/browser/renderer_host/render_widget_host_view_win.h"
+#include "content/browser/renderer_host/render_view_host.h"
+#endif
 
 ShellWindowViews::ShellWindowViews(ExtensionHost* host)
     : ShellWindow(host) {
@@ -15,8 +22,12 @@ ShellWindowViews::ShellWindowViews(ExtensionHost* host)
   window_ = new views::Widget;
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
   params.delegate = this;
-  gfx::Rect bounds(0, 0, 512, 384);
+  gfx::Rect bounds(10, 10, 512, 384);
   params.bounds = bounds;
+#if defined(OS_WIN)
+  params.native_widget = NativeShellFrame::CreateNativeShellFrame(window_)
+      ->AsNativeWidget();
+#endif
   window_->Init(params);
   window_->Show();
 }
@@ -52,6 +63,35 @@ const views::Widget* ShellWindowViews::GetWidget() const {
   return window_;
 }
 
+void ShellWindowViews::OnRenderViewSizeChanged() {
+  // TODO(jeremya): this doesn't seem like a terribly elegant way to keep the
+  // window shape in sync.
+#if defined(OS_WIN)
+  gfx::Size sz = host_->view()->size();
+  int height = sz.height(), width = sz.width();
+  int radius = 1;
+  gfx::Path path;
+  path.moveTo(0, radius);
+  path.lineTo(radius, 0);
+  path.lineTo(width - radius, 0);
+  path.lineTo(width, radius);
+  path.lineTo(width, height - radius - 1);
+  path.lineTo(width - radius - 1, height);
+  path.lineTo(radius + 1, height);
+  path.lineTo(0, height - radius - 1);
+  path.close();
+  SetWindowRgn(host_->view()->native_view(), path.CreateNativeRegion(), 1);
+
+  SkRegion* rgn = new SkRegion;
+  rgn->op(0, 0, width, 20, SkRegion::kUnion_Op);
+  rgn->op(0, 0, 5, height, SkRegion::kUnion_Op);
+  rgn->op(width - 5, 0, width, height, SkRegion::kUnion_Op);
+  rgn->op(0, height - 5, width, height, SkRegion::kUnion_Op);
+  static_cast<RenderWidgetHostViewWin*>(host_->render_view_host()->view())
+      ->SetTransparentRegion(rgn);
+#endif
+}
+
 // static
 ShellWindow* ShellWindow::CreateShellWindow(ExtensionHost* host) {
   return new ShellWindowViews(host);