Plumb GrContext everywhere

There is no good way to split the monster CL up. This breaks out
the GrContext plumbing but doesn't use it.

Change-Id: I90856d428d372bcec3f8821e6364667b367927d4
Reviewed-on: https://skia-review.googlesource.com/133382
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/text/GrTextBlob.cpp b/src/gpu/text/GrTextBlob.cpp
index 00995d0..08491f5 100644
--- a/src/gpu/text/GrTextBlob.cpp
+++ b/src/gpu/text/GrTextBlob.cpp
@@ -252,11 +252,11 @@
     std::unique_ptr<GrAtlasTextOp> op;
     if (info.drawAsDistanceFields()) {
         op = GrAtlasTextOp::MakeDistanceField(
-                std::move(grPaint), glyphCount, distanceAdjustTable,
+                target->getContext(), std::move(grPaint), glyphCount, distanceAdjustTable,
                 target->colorSpaceInfo().isGammaCorrect(), paint.luminanceColor(),
                 props, info.isAntiAliased(), info.hasUseLCDText());
     } else {
-        op = GrAtlasTextOp::MakeBitmap(std::move(grPaint), format, glyphCount,
+        op = GrAtlasTextOp::MakeBitmap(target->getContext(), std::move(grPaint), format, glyphCount,
                                        info.needsTransform());
     }
     GrAtlasTextOp::Geometry& geometry = op->geometry();