Let text contexts fall back directly to paths

src/gpu/GrTextContext.h

Index: src/gpu/GrTextContext.h
diff --git a/src/gpu/GrTextContext.h b/src/gpu/GrTextContext.h
index d333c631413f751d3b89378f921b4dee815e9994..40a08b6b0d6754d9a93b690f173d0442954fc470 100644
--- a/src/gpu/GrTextContext.h
+++ b/src/gpu/GrTextContext.h
@@ -19,6 +19,7 @@ class GrClip;
 class GrContext;
 class GrDrawTarget;
 class GrFontScaler;
+class SkGpuDevice;
 
 /*
  * This class wraps the state for a single text render
@@ -27,18 +28,23 @@ class GrTextContext {
 public:
     virtual ~GrTextContext();
 
-    bool drawText(GrRenderTarget* rt, const GrClip&,  const GrPaint&, const SkPaint&,
+    void drawText(GrRenderTarget* rt, const GrClip&,  const GrPaint&, const SkPaint&,
                   const SkMatrix& viewMatrix, const char text[], size_t byteLength, SkScalar x,
-                  SkScalar y);
-    bool drawPosText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const SkPaint&,
+                  SkScalar y, const SkIRect& clipBounds);
+    void drawPosText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const SkPaint&,
                      const SkMatrix& viewMatrix,
                      const char text[], size_t byteLength,
                      const SkScalar pos[], int scalarsPerPosition,
-                     const SkPoint& offset);
+                     const SkPoint& offset, const SkIRect& clipBounds);
 
 protected:
     GrTextContext*                 fFallbackTextContext;
     GrContext*                     fContext;
+    // TODO we probably don't really need to store a back pointer to the owning SkGpuDevice, except
+    // we need to be able to call drawPath on it in the event no other text context can draw the
+    // text.  We might be able to move this logic to context though.  This is unreffed because
+    // GrTextContext is completely owned by SkGpuDevice
+    SkGpuDevice*                   fGpuDevice;
     SkDeviceProperties             fDeviceProperties;
 
     SkAutoTUnref<GrRenderTarget>   fRenderTarget;
@@ -48,7 +54,7 @@ protected:
     GrPaint                        fPaint;
     SkPaint                        fSkPaint;
 
-    GrTextContext(GrContext*, const SkDeviceProperties&);
+    GrTextContext(GrContext*, SkGpuDevice*, const SkDeviceProperties&);
 
     virtual bool canDraw(const SkPaint& paint, const SkMatrix& viewMatrix) = 0;
 
@@ -61,6 +67,14 @@ protected:
                                const SkScalar pos[], int scalarsPerPosition,
                                const SkPoint& offset) = 0;
 
+    void drawTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix,
+                        const char text[], size_t byteLength, SkScalar x, SkScalar y,
+                        const SkIRect& clipBounds);
+    void drawPosTextAsPath(const SkPaint& origPaint, const SkMatrix& viewMatrix,
+                           const char text[], size_t byteLength,
+                           const SkScalar pos[], int scalarsPerPosition,
+                           const SkPoint& offset, const SkIRect& clipBounds);
+
     void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&);
     void finish() { fDrawTarget = NULL; }
 
@@ -68,6 +82,9 @@ protected:
     // sets extent in stopVector and returns glyph count
     static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc,
                            const char text[], size_t byteLength, SkVector* stopVector);
+
+    friend class GrDistanceFieldTextContext;
+    friend class GrStencilAndCoverTextContext;
 };
 
 #endif