linux: reduce header interdependencies

By analyzing gcc -H output, I found some of our worst offenders for
headers bringing in other headers.  native_web_keyboard_event.h was
responsible for just under 60,000 extra includes!

This change will in theory make the build faster.

Review URL: http://codereview.chromium.org/524004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@35326 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 50 insertions, 0 deletions

diff --git a/app/scoped_handle_gtk.h b/app/scoped_handle_gtk.h
new file mode 100644
index 0000000..d501f91
--- /dev/null
+++ b/app/scoped_handle_gtk.h
@@ -0,0 +1,50 @@
+// 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 APP_SCOPED_HANDLE_GTK_H_
+#define APP_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  // APP_SCOPED_HANDLE_GTK_H_