Move all text stuff to its own folder

src/gpu/GrStencilAndCoverTextContext.h

Index: src/gpu/GrStencilAndCoverTextContext.h
diff --git a/src/gpu/GrStencilAndCoverTextContext.h b/src/gpu/GrStencilAndCoverTextContext.h
deleted file mode 100644
index dab71e057859f798ca3258ce390055d1aee57fad..0000000000000000000000000000000000000000
--- a/src/gpu/GrStencilAndCoverTextContext.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrStencilAndCoverTextContext_DEFINED
-#define GrStencilAndCoverTextContext_DEFINED
-
-#include "GrTextContext.h"
-#include "GrDrawTarget.h"
-#include "GrStrokeInfo.h"
-#include "SkTHash.h"
-#include "SkTInternalLList.h"
-#include "SkTLList.h"
-#include "batches/GrDrawPathBatch.h"
-
-class GrTextStrike;
-class GrPath;
-class SkSurfaceProps;
-
-/*
- * This class implements text rendering using stencil and cover path rendering
- * (by the means of GrDrawTarget::drawPath).
- * This class exposes the functionality through GrTextContext interface.
- */
-class GrStencilAndCoverTextContext : public GrTextContext {
-public:
-    static GrStencilAndCoverTextContext* Create(GrContext*, const SkSurfaceProps&);
-
-    virtual ~GrStencilAndCoverTextContext();
-
-private:
-    GrStencilAndCoverTextContext(GrContext*, const SkSurfaceProps&);
-
-    bool canDraw(const SkPaint& skPaint, const SkMatrix&) override {
-        return this->internalCanDraw(skPaint);
-    }
-
-    bool internalCanDraw(const SkPaint&);
-
-    void onDrawText(GrDrawContext*, const GrClip&, const GrPaint&, const SkPaint&,
-                    const SkMatrix& viewMatrix,
-                    const char text[], size_t byteLength,
-                    SkScalar x, SkScalar y, const SkIRect& clipBounds) override;
-    void onDrawPosText(GrDrawContext*,
-                       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& clipBounds) override;
-    void drawTextBlob(GrDrawContext*, const GrClip&, const SkPaint&,
-                      const SkMatrix& viewMatrix, const SkTextBlob*, SkScalar x, SkScalar y,
-                      SkDrawFilter*, const SkIRect& clipBounds) override;
-
-    class FallbackBlobBuilder;
-
-    class TextRun {
-    public:
-        TextRun(const SkPaint& fontAndStroke);
-        ~TextRun();
-
-        void setText(const char text[], size_t byteLength, SkScalar x, SkScalar y);
-
-        void setPosText(const char text[], size_t byteLength, const SkScalar pos[],
-                        int scalarsPerPosition, const SkPoint& offset);
-
-        void draw(GrContext*, GrDrawContext*, GrPipelineBuilder*, GrColor, const SkMatrix&,
-                  SkScalar x, SkScalar y, const SkIRect& clipBounds,
-                  GrTextContext* fallbackTextContext, const SkPaint& originalSkPaint) const;
-
-        void releaseGlyphCache() const;
-
-        size_t computeSizeInCache() const;
-
-    private:
-        typedef GrDrawPathRangeBatch::InstanceData InstanceData;
-
-        SkGlyphCache* getGlyphCache() const;
-        GrPathRange* createGlyphs(GrContext*) const;
-        void appendGlyph(const SkGlyph&, const SkPoint&, FallbackBlobBuilder*);
-
-        GrStrokeInfo                     fStroke;
-        SkPaint                          fFont;
-        SkScalar                         fTextRatio;
-        float                            fTextInverseRatio;
-        bool                             fUsingRawGlyphPaths;
-        GrUniqueKey                      fGlyphPathsKey;
-        int                              fTotalGlyphCount;
-        SkAutoTUnref<InstanceData>       fInstanceData;
-        int                              fFallbackGlyphCount;
-        SkAutoTUnref<const SkTextBlob>   fFallbackTextBlob;
-        mutable SkGlyphCache*            fDetachedGlyphCache;
-        mutable uint32_t                 fLastDrawnGlyphsID;
-    };
-
-    // Text blobs/caches.
-
-    class TextBlob : public SkTLList<TextRun, 1> {
-    public:
-        typedef SkTArray<uint32_t, true> Key;
-
-        static const Key& GetKey(const TextBlob* blob) { return blob->key(); }
-
-        static uint32_t Hash(const Key& key) {
-            SkASSERT(key.count() > 1); // 1-length keys should be using the blob-id hash map.
-            return SkChecksum::Murmur3(key.begin(), sizeof(uint32_t) * key.count());
-        }
-
-        TextBlob(uint32_t blobId, const SkTextBlob* skBlob, const SkPaint& skPaint)
-            : fKey(&blobId, 1) { this->init(skBlob, skPaint); }
-
-        TextBlob(const Key& key, const SkTextBlob* skBlob, const SkPaint& skPaint)
-            : fKey(key) {
-            // 1-length keys are unterstood to be the blob id and must use the other constructor.
-            SkASSERT(fKey.count() > 1);
-            this->init(skBlob, skPaint);
-        }
-
-        const Key& key() const { return fKey; }
-
-        size_t cpuMemorySize() const { return fCpuMemorySize; }
-
-    private:
-        void init(const SkTextBlob*, const SkPaint&);
-
-        const SkSTArray<1, uint32_t, true>   fKey;
-        size_t                               fCpuMemorySize;
-
-        SK_DECLARE_INTERNAL_LLIST_INTERFACE(TextBlob);
-    };
-
-    const TextBlob& findOrCreateTextBlob(const SkTextBlob*, const SkPaint&);
-    void purgeToFit(const TextBlob&);
-
-    SkTHashMap<uint32_t, TextBlob*>                           fBlobIdCache;
-    SkTHashTable<TextBlob*, const TextBlob::Key&, TextBlob>   fBlobKeyCache;
-    SkTInternalLList<TextBlob>                                fLRUList;
-    size_t                                                    fCacheSize;
-
-    typedef GrTextContext INHERITED;
-};
-
-#endif