Bug 831402: Use android spinners for tablets. [r=mfinkle]

--HG--
extra : rebase_source : dff6de264cd969f4c075c0636257c3434ecfcdd5
Bug 831402: Tablets will have a split action-bar. [r=mfinkle]

--HG--
rename : mobile/android/base/resources/layout-xlarge-v11/tabs_panel_toolbar_menu.xml => mobile/android/base/resources/layout-xlarge-v11/tabs_panel_header.xml
rename : mobile/android/base/resources/layout/tabs_panel_toolbar_menu.xml => mobile/android/base/resources/layout/tabs_panel_header.xml
extra : rebase_source : c8611c910c442439ce46807362a29a3086b6460a
Bug 831402: Ability to show custom menu's PopupWindow above anchor. [r=mfinkle]

--HG--
rename : mobile/android/base/resources/drawable-hdpi/menu_popup_arrow.png => mobile/android/base/resources/drawable-hdpi/menu_popup_arrow_top.png
rename : mobile/android/base/resources/drawable-xhdpi/menu_popup_arrow.png => mobile/android/base/resources/drawable-xhdpi/menu_popup_arrow_top.png
rename : mobile/android/base/resources/drawable/menu_popup_arrow.png => mobile/android/base/resources/drawable/menu_popup_arrow_top.png
extra : rebase_source : 245a5e929b8318b334ca2461020a202442c74e39
Bug 831402: Dividers in tabs UI should be with action-bar. [r=mfinkle]

--HG--
extra : rebase_source : 3e9283838ef85ee713a2e7a7495d493d176f7647
Bug 825498: Focus issue on tablets with h/w keyboard. [r=mfinkle]

--HG--
extra : rebase_source : 926d53f94908842a3bbaa1d6d3747b455eaa153d
Bug 830179: Tab indicators are wrong for mdpi. [r=mfinkle] [needs-clobber]

--HG--
extra : rebase_source : 6a4f216eb732f681f788c7fc1da4a9ea952dc8ce