Clean visual style, part II: extend bright style, convert icons, more touch-ups.

This commit removes the remaining white icons from the previous style,
which was a mix of 'holo dark' (i.e. light) icons and other un-fitting
icons. It's all replaced with theme-colored icons.

The primary color itself had been altered a bit towards green (#18aba1).
Other than the icon replacements, this commit changes:
 - tab switcher: fix cosmetic bug in the title bar in <= xhdpi devices
 - tab switcher: better incognito presentation
 - settings: enable back (<-) arrow
 - settings: bold color in the activity (on L and up)
 - settings: rationalized launching
 - better spacings on the mobile title bar
 - better padding on history items
 - add proportional padding (1em) to the incognito page
 - the incognito tab bar gets a bit darker
 - ['Ingnito Page', 'New Incognito Tab'] -> 'Private Browsing'
 - 'Page info' -> 'Page information' (no abbrevs when user facing :)

Vast amount of unused resources are removed from the APK.

Change-Id: I4add15fc686495ce27f63e26c2c56c14fa3d6603
diff --git a/res/drawable/ic_action_close.xml b/res/drawable/ic_action_close.xml
new file mode 100644
index 0000000..bda0783
--- /dev/null
+++ b/res/drawable/ic_action_close.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (c) 2014, The Linux Foundation. All rights reserved.
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions are
+     met:
+         * Redistributions of source code must retain the above copyright
+           notice, this list of conditions and the following disclaimer.
+         * Redistributions in binary form must reproduce the above
+           copyright notice, this list of conditions and the following
+           disclaimer in the documentation and/or other materials provided
+           with the distribution.
+         * Neither the name of The Linux Foundation nor the names of its
+           contributors may be used to endorse or promote products derived
+           from this software without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+     WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+     ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+     OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+     IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:state_enabled="true" android:state_pressed="true"
+        android:drawable="@drawable/ic_action_stop_active" />
+
+    <item android:state_enabled="true" android:state_selected="true"
+        android:drawable="@drawable/ic_action_stop_active" />
+
+    <item android:state_enabled="false"
+        android:drawable="@drawable/ic_action_stop_disabled" />
+
+    <item android:drawable="@drawable/ic_action_stop_normal" />
+
+</selector>