Revert "Revert "Plumb the use of GrBackendRenderTarget throughout Skia""

This reverts commit e3bd422fafc74dd3410c3de24a576635be92c3b4.

Reason for revert: Pre-req changes have all landed in other projects at this point.

Original change's description:
> Revert "Plumb the use of GrBackendRenderTarget throughout Skia"
> 
> This reverts commit fdd77daedbba3b7c53be74a82fb9fae891b51696.
> 
> Reason for revert: Apparently I have a few more build files to update before this can land.
> 
> Original change's description:
> > Plumb the use of GrBackendRenderTarget throughout Skia
> > 
> > Bug: skia:
> > Change-Id: Ib99a58d9552f5c7b8d77c09dcc72fa88326c26aa
> > Reviewed-on: https://skia-review.googlesource.com/14148
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > Reviewed-by: Robert Phillips <robertphillips@google.com>
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> > 
> 
> TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Change-Id: I984e1909870182474c4c3cce257f01b6a9d8581f
> Reviewed-on: https://skia-review.googlesource.com/14531
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> 

TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,reviews@skia.org
# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: Ib7ab94aada8a7cb80fe38f24daf32f9208c5b169
Reviewed-on: https://skia-review.googlesource.com/14826
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/example/SkiaSDLExample.cpp b/example/SkiaSDLExample.cpp
index abd198a..f3be850 100644
--- a/example/SkiaSDLExample.cpp
+++ b/example/SkiaSDLExample.cpp
@@ -6,6 +6,7 @@
  *
  */
 
+#include "GrBackendSurface.h"
 #include "GrContext.h"
 #include "SDL.h"
 #include "SkCanvas.h"
@@ -192,16 +193,12 @@
 
     // Wrap the frame buffer object attached to the screen in a Skia render target so Skia can
     // render to it
-    GrBackendRenderTargetDesc desc;
-    desc.fWidth = dm.w;
-    desc.fHeight = dm.h;
-    desc.fConfig = kSkia8888_GrPixelConfig;
-    desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
-    desc.fSampleCnt = kMsaaSampleCount;
-    desc.fStencilBits = kStencilBits;
+    GrGLFrameBufferInfo fbInfo;
     GrGLint buffer;
     GR_GL_GetIntegerv(interface, GR_GL_FRAMEBUFFER_BINDING, &buffer);
-    desc.fRenderTargetHandle = buffer;
+    fbInfo.fFBOID = buffer;
+    GrBackendRenderTarget backendRT(dm.w, dm.h, kMsaaSampleCount, kStencilBits,
+                                    kSkia8888_GrPixelConfig, fbInfo);
 
     // setup SkSurface
     // To use distance field text, use commented out SkSurfaceProps instead
@@ -209,7 +206,10 @@
     //                      SkSurfaceProps::kLegacyFontHost_InitType);
     SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
-    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(grContext, desc, &props));
+    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(grContext,
+                                                                    backendRT,
+                                                                    kBottomLeft_GrSurfaceOrigin,
+                                                                    &props));
 
     SkCanvas* canvas = surface->getCanvas();