Extract minimal RenderViewHost interface for embedders, leaving

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"
 
 // If this gets included after the gtk headers, then a bunch of compiler
 // errors happen because of a "#define Status int" in Xlib.h, which interacts
 // badly with net::URLRequestStatus::Status.
 #include "content/common/view_messages.h"
@@ skipping 564 matching lines @@
       parent_(NULL),
       is_popup_first_mouse_release_(true),
       was_imcontext_focused_before_grab_(false),
       do_x_grab_(false),
       is_fullscreen_(false),
       destroy_handler_id_(0),
       dragged_at_horizontal_edge_(0),
       dragged_at_vertical_edge_(0),
       compositing_surface_(gfx::kNullPluginWindow),
       last_mouse_down_(NULL) {
-  host_ = static_cast<RenderWidgetHostImpl*>(widget_host);
+  host_ = widget_host->AsRWHImpl();
   host_->SetView(this);
 }
 
 RenderWidgetHostViewGtk::~RenderWidgetHostViewGtk() {
   UnlockMouse();
   set_last_mouse_down(NULL);
   view_.Destroy();
 }
 
 void RenderWidgetHostViewGtk::InitAsChild(
@@ skipping 432 matching lines @@
     int gpu_host_id) {
   RenderWidgetHostImpl::AcknowledgePostSubBuffer(params.route_id, gpu_host_id);
 }
 
 void RenderWidgetHostViewGtk::AcceleratedSurfaceSuspend() {
 }
 
 
 void RenderWidgetHostViewGtk::SetBackground(const SkBitmap& background) {
   content::RenderWidgetHostViewBase::SetBackground(background);
-  host_->Send(new ViewMsg_SetBackground(host_->routing_id(), background));
+  host_->Send(new ViewMsg_SetBackground(host_->GetRoutingID(), background));
 }
 
 void RenderWidgetHostViewGtk::ModifyEventForEdgeDragging(
     GtkWidget* widget, GdkEventMotion* event) {
   // If the widget is aligned with an edge of the monitor its on and the user
   // attempts to drag past that edge we track the number of times it has
   // occurred, so that we can force the widget to scroll when it otherwise
   // would be unable to, by modifying the (x,y) position in the drag
   // event that we forward on to webkit. If we get a move that's no longer a
   // drag or a drag indicating the user is no longer at that edge we stop
@@ skipping 40 matching lines @@
   }
   dragged_at_horizontal_edge_ = new_dragged_at_horizontal_edge;
   dragged_at_vertical_edge_ = new_dragged_at_vertical_edge;
 }
 
 void RenderWidgetHostViewGtk::Paint(const gfx::Rect& damage_rect) {
   TRACE_EVENT0("ui::gtk", "RenderWidgetHostViewGtk::Paint");
 
   // If the GPU process is rendering directly into the View,
   // call the compositor directly.
-  RenderWidgetHostImpl* render_widget_host =
-      static_cast<RenderWidgetHostImpl*>(GetRenderWidgetHost());
+  RenderWidgetHostImpl* render_widget_host = GetRenderWidgetHost()->AsRWHImpl();
   if (render_widget_host->is_accelerated_compositing_active()) {
     host_->ScheduleComposite();
     return;
   }
 
   GdkWindow* window = gtk_widget_get_window(view_.get());
   DCHECK(!about_to_validate_and_paint_);
 
   invalid_rect_ = damage_rect;
   about_to_validate_and_paint_ = true;
@@ skipping 197 matching lines @@
 void RenderWidgetHostViewGtk::ForwardKeyboardEvent(
     const NativeWebKeyboardEvent& event) {
   if (!host_)
     return;
 
 #if !defined(OS_CHROMEOS)
   EditCommands edit_commands;
   if (!event.skip_in_browser &&
       key_bindings_handler_->Match(event, &edit_commands)) {
     host_->Send(new ViewMsg_SetEditCommandsForNextKeyEvent(
-        host_->routing_id(), edit_commands));
+        host_->GetRoutingID(), edit_commands));
     NativeWebKeyboardEvent copy_event(event);
     copy_event.match_edit_command = true;
     host_->ForwardKeyboardEvent(copy_event);
     return;
   }
 #endif
 
   host_->ForwardKeyboardEvent(event);
 }
 
@@ skipping 87 matching lines @@
   return new RenderWidgetHostViewGtk(widget);
 }
 
 // static
 void content::RenderWidgetHostViewPort::GetDefaultScreenInfo(
     WebKit::WebScreenInfo* results) {
   GdkWindow* gdk_window =
       gdk_display_get_default_group(gdk_display_get_default());
   content::GetScreenInfoFromNativeWindow(gdk_window, results);
 }