Gets find bar animation/clipping to work on views/gtk.

base/scoped_handle_gtk.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 BASE_SCOPED_HANDLE_GTK_H_
+#define BASE_SCOPED_HANDLE_GTK_H_
+
+#include <gdk/gdk.h>
+
+// Wraps a GdkRegion. This class provides the same methods as ScopedGDIObject in
+// scoped_handle_win.
+class ScopedRegion {
+ public:
+  ScopedRegion() : region_(NULL) {}
+  explicit ScopedRegion(GdkRegion* region) : region_(region) {}
+
+  ~ScopedRegion() {
+    Close();
+  }
+
+  void Set(GdkRegion* region) {
+    Close();
+
+    region_ = region;
+  }
+
+  GdkRegion* Get() {
+    return region_;
+  }
+
+  GdkRegion* release() {
+    GdkRegion* region = region_;
+    region_ = NULL;
+    return region;
+  }
+
+ private:
+  void Close() {
+    if (region_) {
+      gdk_region_destroy(region_);
+      region_ = NULL;
+    }
+  }
+
+  GdkRegion* region_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedRegion);
+};
+
+#endif  // BASE_SCOPED_HANDLE_GTK_H_