Move ContextMenuParams struct from webkit/glue to content/public/common. The reasons are:

content/test/test_web_contents_view.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/test/test_web_contents_view.h"
 
 namespace content {
 
 TestWebContentsView::TestWebContentsView() {
 }
@@ skipping 19 matching lines @@
                                             bool user_gesture) {
 }
 
 void TestWebContentsView::ShowCreatedWidget(int route_id,
                                             const gfx::Rect& initial_pos) {
 }
 
 void TestWebContentsView::ShowCreatedFullscreenWidget(int route_id) {
 }
 
-void TestWebContentsView::ShowContextMenu(const ContextMenuParams& params) {
+void TestWebContentsView::ShowContextMenu(
+    const content::ContextMenuParams& params) {
 }
 
 void TestWebContentsView::ShowPopupMenu(const gfx::Rect& bounds,
                                         int item_height,
                                         double item_font_size,
                                         int selected_item,
                                         const std::vector<WebMenuItem>& items,
                                         bool right_aligned) {
 }
 
@@ skipping 78 matching lines @@
 void TestWebContentsView::GetViewBounds(gfx::Rect* out) const {
 }
 
 void TestWebContentsView::InstallOverlayView(gfx::NativeView view) {
 }
 
 void TestWebContentsView::RemoveOverlayView() {
 }
 
 }  // namespace content