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

app/gfx/path_gtk.cc

 // Copyright (c) 2006-2008 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.
 
 #include "app/gfx/path.h"
 
 #include <gdk/gdk.h>
 
 #include "base/scoped_ptr.h"
 #include "base/command_line.h"
 
 namespace gfx {
 
-GdkRegion* Path::CreateGdkRegion() const {
+GdkRegion* Path::CreateNativeRegion() const {
   int point_count = getPoints(NULL, 0);
   if (point_count <= 1) {
     // NOTE: ideally this would return gdk_empty_region, but that returns a
     // region with nothing in it.
     return NULL;
   }
 
   scoped_array<SkPoint> points(new SkPoint[point_count]);
   getPoints(points.get(), point_count);
 
   scoped_array<GdkPoint> gdk_points(new GdkPoint[point_count]);
   for (int i = 0; i < point_count; ++i) {
     gdk_points[i].x = SkScalarRound(points[i].fX);
     gdk_points[i].y = SkScalarRound(points[i].fY);
   }
 
   return gdk_region_polygon(gdk_points.get(), point_count, GDK_EVEN_ODD_RULE);
 }
 
+// static
+NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) {
+  GdkRegion* copy = gdk_region_copy(r1);
+  gdk_region_intersect(copy, r2);
+  return copy;
+}
+
+// static
+NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) {
+  GdkRegion* copy = gdk_region_copy(r1);
+  gdk_region_union(copy, r2);
+  return copy;
+}
+
+// static
+NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) {
+  GdkRegion* copy = gdk_region_copy(r1);
+  gdk_region_subtract(copy, r2);
+  return copy;
+}
+
 }  // namespace gfx