Merge "Revert back to DroidSansArabic font for SystemUI"

Author: Fabrice Di Meglio

core/jni/android/graphics/TextLayoutCache.cpp

@@ -29,7 +29,10 @@ extern "C" {
 namespace android {
 
 //--------------------------------------------------------------------------------------------------
-#define TYPEFACE_ARABIC "/system/fonts/DroidNaskh-Regular.ttf"
+// Using DroidSansArabic for shaping Arabic with Harfbuzz because its metrics are more compatible
+// with the "Roboto" metrics (compared to DroidNaskh-Regular). When we will have an Arabic font
+// whose metrics are similar to the Roboto ones, then we will need to use it for shaping.
+#define TYPEFACE_ARABIC "/system/fonts/DroidSansArabic.ttf"
 #define TYPE_FACE_HEBREW_REGULAR "/system/fonts/DroidSansHebrew-Regular.ttf"
 #define TYPE_FACE_HEBREW_BOLD "/system/fonts/DroidSansHebrew-Bold.ttf"
 #define TYPEFACE_BENGALI "/system/fonts/Lohit-Bengali.ttf"

data/fonts/DroidSansArabic.ttf

@@ -25,6 +25,7 @@
 <familyset>
     <family>
         <fileset>
+            <file>DroidSansArabic.ttf</file>
             <file>DroidNaskh-Regular.ttf</file>
         </fileset>
     </family>

data/fonts/fallback_fonts.xml

@@ -21,6 +21,7 @@ PRODUCT_COPY_FILES := \
     frameworks/base/data/fonts/Roboto-Bold.ttf:system/fonts/Roboto-Bold.ttf \
     frameworks/base/data/fonts/Roboto-Italic.ttf:system/fonts/Roboto-Italic.ttf \
     frameworks/base/data/fonts/Roboto-BoldItalic.ttf:system/fonts/Roboto-BoldItalic.ttf \
+    frameworks/base/data/fonts/DroidSansArabic.ttf:system/fonts/DroidSansArabic.ttf \
     frameworks/base/data/fonts/DroidNaskh-Regular.ttf:system/fonts/DroidNaskh-Regular.ttf \
     frameworks/base/data/fonts/DroidSansHebrew-Regular.ttf:system/fonts/DroidSansHebrew-Regular.ttf \
     frameworks/base/data/fonts/DroidSansHebrew-Bold.ttf:system/fonts/DroidSansHebrew-Bold.ttf \