Move atlas creation to internal to GrResourceProvider

src/gpu/GrResourceProvider.cpp

Index: src/gpu/GrResourceProvider.cpp
diff --git a/src/gpu/GrResourceProvider.cpp b/src/gpu/GrResourceProvider.cpp
index a79b67514eb2ee192197fa802a3f08d954509053..8b04caca4ecc29ae8155f5cf45cef038b08aad56 100644
--- a/src/gpu/GrResourceProvider.cpp
+++ b/src/gpu/GrResourceProvider.cpp
@@ -142,3 +142,24 @@ GrVertexBuffer* GrResourceProvider::createVertexBuffer(size_t size, BufferUsage
     }
     return this->gpu()->createVertexBuffer(size, dynamic);
 }
+
+GrBatchAtlas* GrResourceProvider::createAtlas(GrPixelConfig config,
+                                              int width, int height,
+                                              int numPlotsX, int numPlotsY,
+                                              GrBatchAtlas::EvictionFunc func, void* data) {
+    GrSurfaceDesc desc;
+    desc.fFlags = kNone_GrSurfaceFlags;
+    desc.fWidth = width;
+    desc.fHeight = height;
+    desc.fConfig = config;
+
+    // We don't want to flush the context so we claim we're in the middle of flushing so as to
+    // guarantee we do not recieve a texture with pending IO
+    // TODO: Determine how to avoid having to do this. (http://skbug.com/4156)
+    static const uint32_t kFlags = GrResourceProvider::kNoPendingIO_Flag;
+    GrTexture* texture = this->createApproxTexture(desc, kFlags);
+    if (!texture) {
+        return NULL;
+    }
+    return SkNEW_ARGS(GrBatchAtlas, (texture, numPlotsX, numPlotsY));
+}