Add ContextMenu support upstream for Android

chrome/android/testshell/testshell_tab.cc

Index: chrome/android/testshell/testshell_tab.cc
diff --git a/chrome/android/testshell/testshell_tab.cc b/chrome/android/testshell/testshell_tab.cc
index 6e94ea524fc7aa209c48c4a65e029cc31fe87980..4e39cd402869e0df0273cd1bf4fc96316e9227b9 100644
--- a/chrome/android/testshell/testshell_tab.cc
+++ b/chrome/android/testshell/testshell_tab.cc
@@ -41,17 +41,6 @@ void TestShellTab::OnReceivedHttpAuthRequest(jobject auth_handler,
   NOTIMPLEMENTED();
 }
 
-void TestShellTab::ShowContextMenu(
-    const content::ContextMenuParams& params) {
-  NOTIMPLEMENTED();
-}
-
-void TestShellTab::ShowCustomContextMenu(
-    const content::ContextMenuParams& params,
-    const base::Callback<void(int)>& callback) {
-  NOTIMPLEMENTED();
-}
-
 void TestShellTab::AddShortcutToBookmark(
     const GURL& url, const string16& title, const SkBitmap& skbitmap,
     int r_value, int g_value, int b_value) {