Draw an empty border around glyphs to avoid sampling issues
Bug #6942209

The font renderer was preserving a 1 px border around each glyph to ensure
bilinear filtering would work nicely. Unfortunately, this border was not
set to 0 when glyphs were added in the cache to replace old evicted glyphs.

Change-Id: Ib85afca7ebad5cb63f960dc0e87ae162333dbfe8
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 580d6b5..6639231 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -2892,7 +2892,7 @@
         // the blending, turn blending off here
         // If the blend mode cannot be implemented using shaders, fall
         // back to the default SrcOver blend mode instead
-        if CC_UNLIKELY((mode > SkXfermode::kScreen_Mode)) {
+        if (CC_UNLIKELY(mode > SkXfermode::kScreen_Mode)) {
             if (CC_UNLIKELY(mCaches.extensions.hasFramebufferFetch())) {
                 description.framebufferMode = mode;
                 description.swapSrcDst = swapSrcDst;