Add fallback code for TextContexts that don't support all features

src/gpu/GrBitmapTextContext.cpp

Index: src/gpu/GrBitmapTextContext.cpp
diff --git a/src/gpu/GrBitmapTextContext.cpp b/src/gpu/GrBitmapTextContext.cpp
index ff81b2d2c20e40744457d930b0f4c59a8b544e8c..488aa137e9a14f5c72033df5d74dedcea9d639ae 100755
--- a/src/gpu/GrBitmapTextContext.cpp
+++ b/src/gpu/GrBitmapTextContext.cpp
@@ -19,6 +19,7 @@
 #include "effects/GrCustomCoordsTextureEffect.h"
 
 #include "SkAutoKern.h"
+#include "SkDraw.h"
 #include "SkGlyphCache.h"
 #include "SkGpuDevice.h"
 #include "SkGr.h"
@@ -28,6 +29,10 @@ static const int kGlyphCoordsAttributeIndex = 1;
 SK_CONF_DECLARE(bool, c_DumpFontCache, "gpu.dumpFontCache", false,
                 "Dump the contents of the font cache before every purge.");
 
+bool GrBitmapTextContext::CanDraw(const SkPaint& paint, const SkMatrix& ctm) {
+    return !SkDraw::ShouldDrawTextAsPaths(paint, ctm);
+}
+
 GrBitmapTextContext::GrBitmapTextContext(GrContext* context,
                                          const GrPaint& grPaint,
                                          const SkPaint& skPaint,