move Atlas Text Context to its own file

src/gpu/GrAtlasTextContext.h

Index: src/gpu/GrAtlasTextContext.h
diff --git a/src/gpu/GrBitmapTextContext.h b/src/gpu/GrAtlasTextContext.h
similarity index 77%
copy from src/gpu/GrBitmapTextContext.h
copy to src/gpu/GrAtlasTextContext.h
index 1f8a82f35aae21690d556eac28ebc38eb50db74d..d0c92b9e1f4ef48442c4f8fac70677a46b27099c 100644
--- a/src/gpu/GrBitmapTextContext.h
+++ b/src/gpu/GrAtlasTextContext.h
@@ -1,17 +1,16 @@
 /*
- * Copyright 2013 Google Inc.
+ * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#ifndef GrBitmapTextContext_DEFINED
-#define GrBitmapTextContext_DEFINED
+#ifndef GrAtlasTextContext_DEFINED
+#define GrAtlasTextContext_DEFINED
 
 #include "GrTextContext.h"
 
 #include "GrGeometryProcessor.h"
-#include "GrMemoryPool.h"
 #include "SkDescriptor.h"
 #include "SkTHash.h"
 
@@ -180,51 +179,4 @@ private:
     typedef GrTextContext INHERITED;
 };
 
-class GrTextStrike;
-
-/*
- * This class implements GrTextContext using standard bitmap fonts
- */
-class GrBitmapTextContext : public GrTextContext {
-public:
-    static GrBitmapTextContext* Create(GrContext*, SkGpuDevice*,  const SkDeviceProperties&);
-
-    virtual ~GrBitmapTextContext() {}
-
-private:
-    GrTextStrike*                     fStrike;
-    void*                             fVertices;
-    int                               fCurrVertex;
-    int                               fAllocVertexCount;
-    int                               fTotalVertexCount;
-    SkRect                            fVertexBounds;
-    GrTexture*                        fCurrTexture;
-    GrMaskFormat                      fCurrMaskFormat;
-    SkAutoTUnref<const GrGeometryProcessor> fCachedGeometryProcessor;
-    // Used to check whether fCachedEffect is still valid.
-    uint32_t                          fEffectTextureUniqueID;
-    SkMatrix                          fLocalMatrix;
-
-    GrBitmapTextContext(GrContext*, SkGpuDevice*, const SkDeviceProperties&);
-
-    bool canDraw(const GrRenderTarget*, const GrClip&, const GrPaint&,
-                 const SkPaint&, const SkMatrix& viewMatrix) override;
-
-    void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
-                    const SkMatrix& viewMatrix, const char text[], size_t byteLength,
-                    SkScalar x, SkScalar y, const SkIRect& regionClipBounds) override;
-    void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
-                       const SkMatrix& viewMatrix,
-                       const char text[], size_t byteLength,
-                       const SkScalar pos[], int scalarsPerPosition,
-                       const SkPoint& offset, const SkIRect& regionClipBounds) override;
-
-    void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
-              const SkIRect& regionClipBounds);
-    void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler*);
-    bool uploadGlyph(GrGlyph*, GrFontScaler*);
-    void flush();                 // automatically called by destructor
-    void finish();
-};
-
 #endif