Fix clang_use_chrome_plugin for Mac and Skia builds

core/fxge/skia/fx_skia_device.cpp

Index: core/fxge/skia/fx_skia_device.cpp
diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp
index c82b7f309162bf495f6ab388ea1db4ed604b8d9a..f253b06c6da6c2b9e9620332d8ed676484b0294e 100644
--- a/core/fxge/skia/fx_skia_device.cpp
+++ b/core/fxge/skia/fx_skia_device.cpp
@@ -759,6 +759,15 @@ FX_BOOL CFX_SkiaDeviceDriver::DrawPath(
   return TRUE;
 }
 
+FX_BOOL CFX_SkiaDeviceDriver::DrawCosmeticLine(FX_FLOAT x1,
+                                               FX_FLOAT y1,
+                                               FX_FLOAT x2,
+                                               FX_FLOAT y2,
+                                               uint32_t color,
+                                               int blend_type) {
+  return FALSE;
+}
+
 FX_BOOL CFX_SkiaDeviceDriver::FillRectWithBlend(const FX_RECT* pRect,
                                                 uint32_t fill_color,
                                                 int blend_type) {
@@ -907,6 +916,10 @@ FX_BOOL CFX_SkiaDeviceDriver::DrawShading(const CPDF_ShadingPattern* pPattern,
   return true;
 }
 
+uint8_t* CFX_SkiaDeviceDriver::GetBuffer() const {
+  return m_pBitmap->GetBuffer();
+}
+
 FX_BOOL CFX_SkiaDeviceDriver::GetClipBox(FX_RECT* pRect) {
   // TODO(caryclark) call m_canvas->getClipDeviceBounds() instead
   pRect->left = 0;
@@ -953,6 +966,10 @@ FX_BOOL CFX_SkiaDeviceDriver::GetDIBits(CFX_DIBitmap* pBitmap,
   return bRet;
 }
 
+CFX_DIBitmap* CFX_SkiaDeviceDriver::GetBackDrop() {
+  return m_pOriDevice;
+}
+
 FX_BOOL CFX_SkiaDeviceDriver::SetDIBits(const CFX_DIBSource* pBitmap,
                                         uint32_t argb,
                                         const FX_RECT* pSrcRect,
@@ -1086,6 +1103,10 @@ FX_BOOL CFX_SkiaDeviceDriver::StartDIBits(const CFX_DIBSource* pSource,
   return TRUE;
 }
 
+FX_BOOL CFX_SkiaDeviceDriver::ContinueDIBits(void* handle, IFX_Pause* pPause) {
+  return FALSE;
+}
+
 void CFX_SkiaDeviceDriver::PreMultiply() {
   void* buffer = m_pBitmap->GetBuffer();
   if (!buffer)