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

content/test/render_view_test.h

Index: content/test/render_view_test.h
===================================================================
--- content/test/render_view_test.h	(revision 121660)
+++ content/test/render_view_test.h	(working copy)
@@ -85,6 +85,9 @@
   // Send a raw keyboard event to the renderer.
   void SendWebKeyboardEvent(const WebKit::WebKeyboardEvent& key_event);
 
+  // Send a raw mouse event to the renderer.
+  void SendWebMouseEvent(const WebKit::WebMouseEvent& key_event);
+
   // Returns the bounds (coordinates and size) of the element with id
   // |element_id|.  Returns an empty rect if such an element was not found.
   gfx::Rect GetElementBounds(const std::string& element_id);