Support GrabWindowSnapshot with no g_browser_process

ui/window_snapshot/window_snapshot_gtk.cc

Index: ui/window_snapshot/window_snapshot_gtk.cc
diff --git a/chrome/browser/ui/window_snapshot/window_snapshot_gtk.cc b/ui/window_snapshot/window_snapshot_gtk.cc
similarity index 87%
rename from chrome/browser/ui/window_snapshot/window_snapshot_gtk.cc
rename to ui/window_snapshot/window_snapshot_gtk.cc
index 150aab5b98ab78e8a29586ea989a9a79f4dd42ba..50f825547fa2b0ac7ac5330c60e2aea3e614a2ad 100644
--- a/chrome/browser/ui/window_snapshot/window_snapshot_gtk.cc
+++ b/ui/window_snapshot/window_snapshot_gtk.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/window_snapshot/window_snapshot.h"
+#include "ui/window_snapshot/window_snapshot.h"
 
 #include <gdk/gdkx.h>
 #include <gtk/gtk.h>
@@ -27,11 +27,11 @@ cairo_status_t SnapshotCallback(void* closure,
 
 }  // namespace
 
-namespace chrome {
+namespace ui {
 
-bool GrabWindowSnapshotImpl(gfx::NativeWindow window_handle,
-                            std::vector<unsigned char>* png_representation,
-                            const gfx::Rect& snapshot_bounds) {
+bool GrabWindowSnapshot(gfx::NativeWindow window_handle,
+                        std::vector<unsigned char>* png_representation,
+                        const gfx::Rect& snapshot_bounds) {
   GdkWindow* gdk_window = gtk_widget_get_window(GTK_WIDGET(window_handle));
   Display* display = GDK_WINDOW_XDISPLAY(gdk_window);
   XID win = GDK_WINDOW_XID(gdk_window);
@@ -75,4 +75,4 @@ bool GrabWindowSnapshotImpl(gfx::NativeWindow window_handle,
   return true;
 }
 
-}  // namespace chrome
+}  // namespace ui