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

chrome/browser/tab_contents/web_drag_bookmark_handler_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/web_drag_bookmark_handler_gtk.h"
+
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/gtk/bookmarks/bookmark_utils_gtk.h"
+#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
+#include "chrome/browser/profiles/profile.h"
+#include "ui/base/dragdrop/gtk_dnd_util.h"
+
+WebDragBookmarkHandlerGtk::WebDragBookmarkHandlerGtk()
+    : tab_(NULL) {
+}
+
+WebDragBookmarkHandlerGtk::~WebDragBookmarkHandlerGtk() {}
+
+void WebDragBookmarkHandlerGtk::DragInitialize(TabContents* contents) {
+  bookmark_drag_data_.Clear();
+
+  // Ideally we would want to initialize the the TabContentsWrapper member in
+  // the constructor. We cannot do that as the WebDragDestGtk object is
+  // created during the construction of the TabContents object.  The
+  // TabContentsWrapper is created much later.
+  if (!tab_)
+    tab_ = TabContentsWrapper::GetCurrentWrapperForContents(contents);
+}
+
+void WebDragBookmarkHandlerGtk::OnReceiveDataFromGtk(GtkSelectionData* data) {
+  if (tab_) {
+    Profile* profile = tab_->profile();
+    bookmark_drag_data_.ReadFromVector(
+        bookmark_utils::GetNodesFromSelection(
+            NULL, data,
+            ui::CHROME_BOOKMARK_ITEM,
+            profile, NULL, NULL));
+    bookmark_drag_data_.SetOriginatingProfile(profile);
+  }
+}
+
+void WebDragBookmarkHandlerGtk::OnReceiveProcessedData(const GURL& url,
+                                                       const string16& title) {
+  bookmark_drag_data_.ReadFromTuple(url, title);
+}
+
+void WebDragBookmarkHandlerGtk::OnDragOver() {
+  if (tab_ && tab_->bookmark_tab_helper()->GetBookmarkDragDelegate())
+    tab_->bookmark_tab_helper()->GetBookmarkDragDelegate()->OnDragOver(
+        bookmark_drag_data_);
+}
+
+void WebDragBookmarkHandlerGtk::OnDragEnter() {
+  // This is non-null if tab_contents_ is showing an ExtensionWebUI with
+  // support for (at the moment experimental) drag and drop extensions.
+  if (tab_ && tab_->bookmark_tab_helper()->GetBookmarkDragDelegate())
+    tab_->bookmark_tab_helper()->GetBookmarkDragDelegate()->OnDragEnter(
+        bookmark_drag_data_);
+}
+
+void WebDragBookmarkHandlerGtk::OnDrop() {
+  // This is non-null if tab_contents_ is showing an ExtensionWebUI with
+  // support for (at the moment experimental) drag and drop extensions.
+  if (tab_) {
+    if (tab_->bookmark_tab_helper()->GetBookmarkDragDelegate()) {
+      tab_->bookmark_tab_helper()->GetBookmarkDragDelegate()->OnDrop(
+          bookmark_drag_data_);
+    }
+
+    // Focus the target browser.
+    Browser* browser = Browser::GetBrowserForController(
+        &tab_->controller(), NULL);
+    if (browser)
+      browser->window()->Show();
+  }
+}
+
+void WebDragBookmarkHandlerGtk::OnDragLeave() {
+  if (tab_ && tab_->bookmark_tab_helper()->GetBookmarkDragDelegate())
+    tab_->bookmark_tab_helper()->GetBookmarkDragDelegate()->OnDragLeave(
+        bookmark_drag_data_);
+}