Bug 850724 - Don't hide toolbar on load, or pin while loading. r=kats

UX decisions have been made to not hide the toolbar after the page has finished
loading, and not to pin the toolbar during page loading. These decisions fix
this bug.
Bug 850154 - Fix alignment of find-in-page bar after bug 716403. r=sriram

Use the RelativeLayout.LayoutParams instead of LinearLayout.LayoutParams to
make sure the find-in-page bar is aligned to the bottom of the page.
Bug 850789 - Pin the dynamic toolbar on screen when the tabs tray is open. r=kats