Use a status_t return type for GL functors

WebView needs more fine-grained control over the behavior of the
framework upon execution of the display lists. The new status_t
allows WebView to requests its functor to be re-executed directly
without causing a redraw of the entire hierarchy.

Change-Id: I97a8141dc5c6eeb6805b6024cc1e76fce07d24cc
diff --git a/libs/hwui/FontRenderer.cpp b/libs/hwui/FontRenderer.cpp
index 493dc1b..9e7fbb5 100644
--- a/libs/hwui/FontRenderer.cpp
+++ b/libs/hwui/FontRenderer.cpp
@@ -779,7 +779,7 @@
     // We store a string with letters in a rough frequency of occurrence
     mLatinPrecache = String16("eisarntolcdugpmhbyfvkwzxjq ");
     mLatinPrecache += String16("EISARNTOLCDUGPMHBYFVKWZXJQ");
-    mLatinPrecache += String16(",.?!()-+@;:`'");
+    mLatinPrecache += String16(",.?!()-+@;:'");
     mLatinPrecache += String16("0123456789");
 
     mInitialized = true;