Don't draw entirely transparent 9patch meshes.

Change-Id: If3e62e18b8e0dbde8a22f8ede2889b86500a4dc2
diff --git a/libs/hwui/FontRenderer.cpp b/libs/hwui/FontRenderer.cpp
index 1b21aee..e1a236c 100644
--- a/libs/hwui/FontRenderer.cpp
+++ b/libs/hwui/FontRenderer.cpp
@@ -616,8 +616,8 @@
     // Remaining capacity is measured in %
     uint32_t remainingCapacity = getRemainingCacheCapacity();
     uint32_t precacheIdx = 0;
-    while(remainingCapacity > 25 && precacheIdx < mLatinPrecache.size()) {
-        mCurrentFont->getCachedUTFChar(paint, (int32_t)mLatinPrecache[precacheIdx]);
+    while (remainingCapacity > 25 && precacheIdx < mLatinPrecache.size()) {
+        mCurrentFont->getCachedUTFChar(paint, (int32_t) mLatinPrecache[precacheIdx]);
         remainingCapacity = getRemainingCacheCapacity();
         precacheIdx ++;
     }