[base] Migrate deprecated GL GrBackendRenderTarget constructor

I missed this call in http://ag/24343000

Change-Id: Id353835a91f8007bce1dd0d5910b07d93a77a8e3
diff --git a/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
index 530c654..7744786 100644
--- a/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
+++ b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
@@ -17,6 +17,7 @@
 #include "SkiaOpenGLPipeline.h"
 
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
+#include <include/gpu/ganesh/gl/GrGLBackendSurface.h>
 #include <include/gpu/gl/GrGLTypes.h>
 #include <GrBackendSurface.h>
 #include <SkBlendMode.h>
@@ -140,7 +141,8 @@
         LOG_ALWAYS_FATAL("Unsupported color type.");
     }
 
-    GrBackendRenderTarget backendRT(frame.width(), frame.height(), 0, STENCIL_BUFFER_SIZE, fboInfo);
+    auto backendRT = GrBackendRenderTargets::MakeGL(frame.width(), frame.height(), 0,
+                                                    STENCIL_BUFFER_SIZE, fboInfo);
 
     SkSurfaceProps props(mColorMode == ColorMode::Default ? 0 : SkSurfaceProps::kAlwaysDither_Flag,
                          kUnknown_SkPixelGeometry);