Move GrAtlasTextContext to GrDrawingManager, so we only have one.

src/gpu/GrDrawContext.cpp

Index: src/gpu/GrDrawContext.cpp
diff --git a/src/gpu/GrDrawContext.cpp b/src/gpu/GrDrawContext.cpp
index 0a6ab5b52704876ff8976489db3ecc114d3f8a2a..345d3e833f9ecc3e89ee624f48dd954639289fb0 100644
--- a/src/gpu/GrDrawContext.cpp
+++ b/src/gpu/GrDrawContext.cpp
@@ -135,12 +135,9 @@ void GrDrawContext::drawText(const GrClip& clip, const GrPaint& grPaint,
     SkDEBUGCODE(this->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawText");
 
-    if (!fAtlasTextContext) {
-        fAtlasTextContext.reset(GrAtlasTextContext::Create());
-    }
-
-    fAtlasTextContext->drawText(fContext, this, clip, grPaint, skPaint, viewMatrix, fSurfaceProps,
-                                text, byteLength, x, y, clipBounds);
+    GrAtlasTextContext* atlasTextContext = fDrawingManager->getAtlasTextContext();
+    atlasTextContext->drawText(fContext, this, clip, grPaint, skPaint, viewMatrix, fSurfaceProps,
+                               text, byteLength, x, y, clipBounds);
 }
 
 void GrDrawContext::drawPosText(const GrClip& clip, const GrPaint& grPaint,
@@ -154,13 +151,10 @@ void GrDrawContext::drawPosText(const GrClip& clip, const GrPaint& grPaint,
     SkDEBUGCODE(this->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawPosText");
 
-    if (!fAtlasTextContext) {
-        fAtlasTextContext.reset(GrAtlasTextContext::Create());
-    }
-
-    fAtlasTextContext->drawPosText(fContext, this, clip, grPaint, skPaint, viewMatrix,
-                                   fSurfaceProps, text, byteLength, pos, scalarsPerPosition,
-                                   offset, clipBounds);
+    GrAtlasTextContext* atlasTextContext = fDrawingManager->getAtlasTextContext();
+    atlasTextContext->drawPosText(fContext, this, clip, grPaint, skPaint, viewMatrix,
+                                  fSurfaceProps, text, byteLength, pos, scalarsPerPosition,
+                                  offset, clipBounds);
 
 }
 
@@ -173,12 +167,9 @@ void GrDrawContext::drawTextBlob(const GrClip& clip, const SkPaint& skPaint,
     SkDEBUGCODE(this->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawTextBlob");
 
-    if (!fAtlasTextContext) {
-        fAtlasTextContext.reset(GrAtlasTextContext::Create());
-    }
-
-    fAtlasTextContext->drawTextBlob(fContext, this, clip, skPaint, viewMatrix, fSurfaceProps, blob,
-                                    x, y, filter, clipBounds);
+    GrAtlasTextContext* atlasTextContext = fDrawingManager->getAtlasTextContext();
+    atlasTextContext->drawTextBlob(fContext, this, clip, skPaint, viewMatrix, fSurfaceProps, blob,
+                                   x, y, filter, clipBounds);
 }
 
 void GrDrawContext::discard() {