Update the appearance of the title bar in the browser.

Change the title bar to use the look of the search bar.  Remove
the new tab button, which is now a part of the updated menu.  Make
the title bar for each WebView span the width of the screen.  Make
the title bar appear when pressing the menu button.

Change-Id: I7ad1c955412d422be0fc6f26ec8d286172a0a99a
diff --git a/res/values/strings.xml b/res/values/strings.xml
index c0d1429..b224517 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -18,6 +18,8 @@
     <!-- The name of the application. -->
     <string name="application_name">Browser</string>
 
+    <!-- Name of menu item of a new tab.  Also used in the title bar when displaying a new tab -->
+    <string name="new_tab">New tab</string>
     <!-- Name of tab containing bookmarks -->
     <string name="tab_bookmarks">Bookmarks</string>
     <!-- Name of tab containing the user's most visited websites, organized by number of visits -->