Move surface resize platform code from GpuProcessHostUIShim to RenderWidgetHostView implementations.

content/browser/renderer_host/render_widget_host_view_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 "content/browser/renderer_host/render_widget_host_view_gtk.h"
 
 #include <cairo/cairo.h>
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
@@ skipping 1276 matching lines @@
     GtkNativeViewManager* manager = GtkNativeViewManager::GetInstance();
     gfx::NativeViewId view_id = GetNativeViewId();
 
     if (!manager->GetPermanentXIDForId(&compositing_surface_, view_id)) {
       DLOG(ERROR) << "Can't find XID for view id " << view_id;
     }
   }
   return gfx::GLSurfaceHandle(compositing_surface_, gfx::NATIVE_TRANSPORT);
 }
 
+void RenderWidgetHostViewGtk::ResizeCompositingSurface(const gfx::Size& size) {
+  GtkWidget* widget = view_.get();
+  GdkWindow* window = gtk_widget_get_window(widget);
+  if (window) {
+    Display* display = GDK_WINDOW_XDISPLAY(window);
+    gdk_window_resize(window, size.width(), size.height());
+    XSync(display, False);
+  }
+}
+
 bool RenderWidgetHostViewGtk::LockMouse() {
   if (mouse_locked_)
     return true;
 
   mouse_locked_ = true;
 
   // Release any current grab.
   GtkWidget* current_grab_window = gtk_grab_get_current();
   if (current_grab_window) {
     gtk_grab_remove(current_grab_window);
@@ skipping 268 matching lines @@
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.CreatePluginContainer(id);
 }
 
 void RenderWidgetHostViewGtk::OnDestroyPluginContainer(
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.DestroyPluginContainer(id);
 }
 
 }  // namespace content