Implemented GetWindowSnapshot on RenderViewImpl

ui/snapshot/snapshot_gtk.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/window_snapshot/window_snapshot.h"
+#include "ui/snapshot/snapshot.h"
 
 #include <gdk/gdkx.h>
 #include <gtk/gtk.h>
 
 #include "base/logging.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/rect.h"
 
 namespace {
 
 cairo_status_t SnapshotCallback(void* closure,
                                 const unsigned char* data,
                                 unsigned int length) {
   std::vector<unsigned char>* png_representation =
       static_cast<std::vector<unsigned char>*>(closure);
 
   size_t old_size = png_representation->size();
   png_representation->resize(old_size + length);
   memcpy(&(*png_representation)[old_size], data, length);
   return CAIRO_STATUS_SUCCESS;
 }
 
 }  // namespace
 
-namespace chrome {
-namespace internal {
+namespace ui {
 
-bool GrabWindowSnapshot(gfx::NativeWindow window_handle,
+bool GrabViewSnapshot(gfx::NativeView view_handle,
                         std::vector<unsigned char>* png_representation,
                         const gfx::Rect& snapshot_bounds) {
-  GdkWindow* gdk_window = gtk_widget_get_window(GTK_WIDGET(window_handle));
+  GdkWindow* gdk_window = gtk_widget_get_window(view_handle);
   Display* display = GDK_WINDOW_XDISPLAY(gdk_window);
   XID win = GDK_WINDOW_XID(gdk_window);
 
   gfx::Rect window_bounds;
   if (ui::GetWindowRect(win, &window_bounds) == 0) {
     LOG(ERROR) << "Couldn't get window bounds";
     return false;
   }
 
   DCHECK_LE(snapshot_bounds.right(), window_bounds.width());
@@ skipping 22 matching lines @@
     LOG(ERROR) << "Unable to create Cairo surface from XImage data";
     return false;
   }
   cairo_surface_write_to_png_stream(
       surface, SnapshotCallback, png_representation);
   cairo_surface_destroy(surface);
 
   return true;
 }
 
-}  // namespace internal
-}  // namespace chrome
+bool GrabWindowSnapshot(gfx::NativeWindow window_handle,
+                        std::vector<unsigned char>* png_representation,
+                        const gfx::Rect& snapshot_bounds) {
+  return GrabViewSnapshot(GTK_WIDGET(window_handle), png_representation,
+      snapshot_bounds);
+}
+
+}  // namespace ui