content: Split web_drag_dest_gtk.cc into chrome/ and content/ parts.

chrome/browser/tab_contents/tab_contents_view_gtk.cc

 // Copyright (c) 2011 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/tab_contents/tab_contents_view_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
 #include <algorithm>
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_gtk.h"
+#include "chrome/browser/tab_contents/web_drag_bookmark_handler_gtk.h"
 #include "chrome/browser/tab_contents/web_drag_dest_gtk.h"
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
 #include "chrome/browser/ui/gtk/sad_tab_gtk.h"
 #include "chrome/browser/ui/gtk/tab_contents_drag_source.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_widget_host_view_gtk.h"
 #include "content/browser/tab_contents/interstitial_page.h"
@@ skipping 119 matching lines @@
   g_signal_connect(content_view, "motion-notify-event",
                    G_CALLBACK(OnMouseMove), tab_contents_);
   g_signal_connect(content_view, "scroll-event",
                    G_CALLBACK(OnMouseScroll), tab_contents_);
   gtk_widget_add_events(content_view, GDK_LEAVE_NOTIFY_MASK |
                         GDK_POINTER_MOTION_MASK);
   InsertIntoContentArea(content_view);
 
   // Renderer target DnD.
   drag_dest_.reset(new WebDragDestGtk(tab_contents_, content_view));
+  bookmark_handler_gtk_.reset(new WebDragBookmarkHandlerGtk);
+  drag_dest_->set_delegate(bookmark_handler_gtk_.get());
 
   return view;
 }
 
 gfx::NativeView TabContentsViewGtk::GetNativeView() const {
   return floating_.get();
 }
 
 gfx::NativeView TabContentsViewGtk::GetContentNativeView() const {
   RenderWidgetHostView* rwhv = tab_contents_->GetRenderWidgetHostView();
@@ skipping 335 matching lines @@
   g_value_set_int(&value, child_x);
   gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                    widget, "x", &value);
 
   int child_y = std::max((allocation->height - requisition.height) / 2, 0);
   g_value_set_int(&value, child_y);
   gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                    widget, "y", &value);
   g_value_unset(&value);
 }