views: Split DownloadShelfContextMenuWin out to its own header file.

This moves the implementation of DownloadShelfContextMenuWin from download_item_view.cc
to download_shelf_context_menu_view.*

Renames DownloadShelfContextMenuWin to DownloadShelfContextMenuView.

BUG=28978
TEST=None

[email protected],[email protected]

Review URL: http://codereview.chromium.org/7056001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86237 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 5a8cbeb..6432159c 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2972,6 +2972,8 @@
         'browser/ui/views/download/download_in_progress_dialog_view.h',
         'browser/ui/views/download/download_item_view.cc',
         'browser/ui/views/download/download_item_view.h',
+        'browser/ui/views/download/download_shelf_context_menu_view.cc',
+        'browser/ui/views/download/download_shelf_context_menu_view.h',
         'browser/ui/views/download/download_shelf_view.cc',
         'browser/ui/views/download/download_shelf_view.h',
         'browser/ui/views/download/download_started_animation_win.cc',
@@ -4044,6 +4046,8 @@
                 ['include', '^browser/ui/views/download/download_in_progress_dialog_view.h'],
                 ['include', '^browser/ui/views/download/download_item_view.cc'],
                 ['include', '^browser/ui/views/download/download_item_view.h'],
+                ['include', '^browser/ui/views/download/download_shelf_context_menu_view.cc'],
+                ['include', '^browser/ui/views/download/download_shelf_context_menu_view.h'],
                 ['include', '^browser/ui/views/download/download_shelf_view.cc'],
                 ['include', '^browser/ui/views/download/download_shelf_view.h'],
                 ['include', '^browser/ui/views/dragged_tab_controller.cc'],