make drawText calls non-virtual, to ease SkFont and TextBlob

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index f501468a330de7659adc9a6b1233722bf88cb413..d8399717fe353908a5e364047b64a4cd08362b62 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -2356,8 +2356,8 @@ void SkCanvas::DrawTextDecorations(const SkDraw& draw, const SkPaint& paint,
     }
 }
 
-void SkCanvas::drawText(const void* text, size_t byteLength,
-                        SkScalar x, SkScalar y, const SkPaint& paint) {
+void SkCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
+                          const SkPaint& paint) {
     CHECK_SHADER_NOSETCONTEXT(paint);
 
     LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, NULL)
@@ -2372,52 +2372,68 @@ void SkCanvas::drawText(const void* text, size_t byteLength,
     LOOPER_END
 }
 
-void SkCanvas::drawPosText(const void* text, size_t byteLength,
-                           const SkPoint pos[], const SkPaint& paint) {
+void SkCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
+                             const SkPaint& paint) {
     CHECK_SHADER_NOSETCONTEXT(paint);
-
+    
     LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, NULL)
-
+    
     while (iter.next()) {
         SkDeviceFilteredPaint dfp(iter.fDevice, looper.paint());
         iter.fDevice->drawPosText(iter, text, byteLength, &pos->fX, 0, 2,
                                   dfp.paint());
     }
-
+    
     LOOPER_END
 }
 
-void SkCanvas::drawPosTextH(const void* text, size_t byteLength,
-                            const SkScalar xpos[], SkScalar constY,
-                            const SkPaint& paint) {
+void SkCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
+                              SkScalar constY, const SkPaint& paint) {
     CHECK_SHADER_NOSETCONTEXT(paint);
-
+    
     LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, NULL)
-
+    
     while (iter.next()) {
         SkDeviceFilteredPaint dfp(iter.fDevice, looper.paint());
         iter.fDevice->drawPosText(iter, text, byteLength, xpos, constY, 1,
                                   dfp.paint());
     }
-
+    
     LOOPER_END
 }
 
-void SkCanvas::drawTextOnPath(const void* text, size_t byteLength,
-                              const SkPath& path, const SkMatrix* matrix,
-                              const SkPaint& paint) {
+void SkCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
+                                const SkMatrix* matrix, const SkPaint& paint) {
     CHECK_SHADER_NOSETCONTEXT(paint);
-
+    
     LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, NULL)
-
+    
     while (iter.next()) {
         iter.fDevice->drawTextOnPath(iter, text, byteLength, path,
                                      matrix, looper.paint());
     }
-
+    
     LOOPER_END
 }
 
+// These will become non-virtual, so they always call the (virtual) onDraw... method
+void SkCanvas::drawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
+                        const SkPaint& paint) {
+    this->onDrawText(text, byteLength, x, y, paint);
+}
+void SkCanvas::drawPosText(const void* text, size_t byteLength, const SkPoint pos[],
+                           const SkPaint& paint) {
+    this->onDrawPosText(text, byteLength, pos, paint);
+}
+void SkCanvas::drawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
+                            SkScalar constY, const SkPaint& paint) {
+    this->onDrawPosTextH(text, byteLength, xpos, constY, paint);
+}
+void SkCanvas::drawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
+                              const SkMatrix* matrix, const SkPaint& paint) {
+    this->onDrawTextOnPath(text, byteLength, path, matrix, paint);
+}
+
 void SkCanvas::drawVertices(VertexMode vmode, int vertexCount,
                             const SkPoint verts[], const SkPoint texs[],
                             const SkColor colors[], SkXfermode* xmode,