add native draw bitmap with alpha mask

core/fxge/ge/cfx_renderdevice.cpp

Index: core/fxge/ge/cfx_renderdevice.cpp
diff --git a/core/fxge/ge/cfx_renderdevice.cpp b/core/fxge/ge/cfx_renderdevice.cpp
index f04f4bab9a38a3614bef92725c2c68649df25294..53ee039cd34d2eea9c9d3fe2e20c9309a52e2b86 100644
--- a/core/fxge/ge/cfx_renderdevice.cpp
+++ b/core/fxge/ge/cfx_renderdevice.cpp
@@ -811,10 +811,19 @@ void CFX_RenderDevice::CancelDIBits(void* handle) {
 }
 
 #ifdef _SKIA_SUPPORT_
-
 void CFX_RenderDevice::DebugVerifyBitmapIsPreMultiplied() const {
   SkASSERT(0);
 }
+
+bool CFX_RenderDevice::SetBitsWithMask(const CFX_DIBSource* pBitmap,
+                                       const CFX_DIBSource* pMask,
+                                       int left,
+                                       int top,
+                                       int bitmap_alpha,
+                                       int blend_type) {
+  return m_pDeviceDriver->SetBitsWithMask(pBitmap, pMask, left, top,
+                                          bitmap_alpha, blend_type);
+}
 #endif
 
 FX_BOOL CFX_RenderDevice::DrawNormalText(int nChars,