Context menus should appear above the touch point if invoked by long press.

chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc

Index: chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc
diff --git a/chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc b/chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc
index fc54bc19c719e68a1ed2694f380d4555818b1aaf..ec8b53cb743d0f68a34cb3bd675ea5360d335391 100644
--- a/chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc
+++ b/chrome/browser/ui/views/tab_contents/render_view_context_menu_views.cc
@@ -42,10 +42,15 @@ RenderViewContextMenuViews* RenderViewContextMenuViews::Create(
 }
 #endif  // OS_WIN
 
-void RenderViewContextMenuViews::RunMenuAt(views::Widget* parent,
-                                           const gfx::Point& point) {
+void RenderViewContextMenuViews::RunMenuAt(
+    views::Widget* parent,
+    const gfx::Point& point,
+    const content::ContextMenuSourceType& type) {
+  views::MenuItemView::AnchorPosition anchor_position =
+      type == content::CONTEXT_MENU_SOURCE_GESTURE ?
+          views::MenuItemView::BOTTOMCENTER : views::MenuItemView::TOPLEFT;

[sky, 2012/09/06 16:35:03]

Why do we want BOTTOMCENTER for long press?

[varunjain, 2012/09/06 16:43:45]

request from UX was to display the context menu centered above the finger for
long press. For right click with mouse, the context menu should remain where it
is.

   if (menu_runner_->RunMenuAt(parent, NULL, gfx::Rect(point, gfx::Size()),
-          views::MenuItemView::TOPLEFT, views::MenuRunner::HAS_MNEMONICS |
+      anchor_position, views::MenuRunner::HAS_MNEMONICS |
           views::MenuRunner::CONTEXT_MENU) ==
       views::MenuRunner::MENU_DELETED)
     return;