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/layout/title_bar_nav.xml b/res/layout/title_bar_nav.xml
index b9952f1..c412e11 100644
--- a/res/layout/title_bar_nav.xml
+++ b/res/layout/title_bar_nav.xml
@@ -29,15 +29,18 @@
 
         <ImageView
             android:id="@+id/incognito_icon"
-            android:layout_width="48dp"
+            android:layout_width="wrap_content"
             android:layout_height="match_parent"
-            android:src="@drawable/ic_incognito_holo_dark"
+            android:layout_gravity="center"
+            android:layout_marginLeft="8dp"
+            android:src="@drawable/ic_deco_incognito_normal"
             android:visibility="gone" />
 
         <com.android.browser.LocationButton
             android:id="@+id/location_button"
             style="@style/NavButton"
             android:layout_width="wrap_content"
+            android:paddingRight="2dp"
             android:visibility="gone" />
 
         <ImageView
@@ -61,7 +64,8 @@
                 android:layout_height="32dip"
                 android:layout_gravity="center"
                 android:paddingLeft="6dip"
-                android:paddingRight="6dip" />
+                android:paddingRight="6dip"
+                android:scaleType="fitCenter" />
 
             <ImageView
                 android:id="@+id/lock"
@@ -100,6 +104,7 @@
             android:paddingRight="6dp"
             android:scrollHorizontally="true"
             android:singleLine="true"
+            android:fontFamily="sans-serif-condensed"
             android:textAppearance="?android:attr/textAppearanceMedium" />
 
         <ImageView
@@ -108,7 +113,7 @@
             android:layout_width="wrap_content"
             android:contentDescription="@string/accessibility_button_voice"
             android:paddingRight="4dip"
-            android:src="@drawable/ic_voice_search_holo_dark"
+            android:src="@drawable/ic_action_microphone_normal"
             android:visibility="gone" />
 
         <ImageButton
@@ -136,11 +141,12 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
+            android:clickable="false"
             android:paddingBottom="3dp"
             android:paddingRight="2dp"
-            android:clickable="false"
-            android:text="0" >
-        </TextView>
+            android:textColor="#333"
+            android:textSize="13dp"
+            android:textStyle="bold" />
     </FrameLayout>
 
     <ImageButton