Move atlas creation to internal to GrResourceProvider

src/gpu/GrResourceProvider.h

Index: src/gpu/GrResourceProvider.h
diff --git a/src/gpu/GrResourceProvider.h b/src/gpu/GrResourceProvider.h
index 9ba1426fb6e73c425dfedaf4250e1033ef060ded..50388f0acdaf73d3de752555635e86b2db779f56 100644
--- a/src/gpu/GrResourceProvider.h
+++ b/src/gpu/GrResourceProvider.h
@@ -8,10 +8,12 @@
 #ifndef GrResourceProvider_DEFINED
 #define GrResourceProvider_DEFINED
 
+#include "GrBatchAtlas.h"
 #include "GrIndexBuffer.h"
 #include "GrTextureProvider.h"
 #include "GrPathRange.h"
 
+class GrBatchAtlas;
 class GrIndexBuffer;
 class GrPath;
 class GrStrokeInfo;
@@ -113,6 +115,24 @@ public:
         return this->internalCreateApproxTexture(desc, flags);
     }
 
+    /**  Returns a GrBatchAtlas.  Should only be used inside of GrBatch::generateGeometry

[bsalomon, 2015/08/04 17:39:40]

This reads as though the function should only be used inside GG but neither
caller does that. Should it say that the returned atlas should only be used
inside GG?

+     *   @param GrPixelConfig    The pixel config which this atlas will store
+     *   @param width            width in pixels of the atlas
+     *   @param height           height in pixels of the atlas
+     *   @param numPlotsX        The number of plots the atlas should be broken up into in the X
+     *                           direction
+     *   @param numPlotsY        The number of plots the atlas should be broken up into in the Y
+     *                           direction
+     *   @param func             An eviction function which will be called whenever the atlas has to
+     *                           evict data
+     *   @param data             User supplied data which will be passed into func whenver an
+     *                           eviction occurs
+     *
+     *   @return                 An initialized GrBatchAtlas, or NULL if creation fails
+     */
+    GrBatchAtlas* createAtlas(GrPixelConfig, int width, int height, int numPlotsX, int numPlotsY,
+                              GrBatchAtlas::EvictionFunc func, void* data);
+
 private:
     const GrIndexBuffer* createInstancedIndexBuffer(const uint16_t* pattern,
                                                     int patternSize,