clean up dead code

gm/gammatext.cpp

Index: gm/gammatext.cpp
diff --git a/gm/gammatext.cpp b/gm/gammatext.cpp
index 54b0765783866de0522cdcaafa6bf36645ef0551..b10bd1a111aaea7f00e99a17e517588bd541a5cd 100644
--- a/gm/gammatext.cpp
+++ b/gm/gammatext.cpp
@@ -12,12 +12,6 @@
 #include "SkTypeface.h"
 
 static SkShader* make_heatGradient(const SkPoint pts[2]) {
-#if 0 // UNUSED
-    const SkColor colors[] = {
-        SK_ColorBLACK, SK_ColorBLUE, SK_ColorCYAN, SK_ColorGREEN,
-        SK_ColorYELLOW, SK_ColorRED, SK_ColorWHITE
-    };
-#endif
     const SkColor bw[] = { SK_ColorBLACK, SK_ColorWHITE };
 
     return SkGradientShader::CreateLinear(pts, bw, NULL,
@@ -34,71 +28,6 @@ static bool setFont(SkPaint* paint, const char name[]) {
     return false;
 }
 
-#ifdef SK_BUILD_FOR_MAC
-#import <ApplicationServices/ApplicationServices.h>
-#define BITMAP_INFO_RGB     (kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host)
-
-static CGContextRef makeCG(const SkImageInfo& info, const void* addr,
-                           size_t rowBytes) {
-    if (kN32_SkColorType != info.colorType() || NULL == addr) {
-        return NULL;
-    }
-    CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
-    CGContextRef cg = CGBitmapContextCreate((void*)addr, info.width(), info.height(),
-                                            8, rowBytes, space, BITMAP_INFO_RGB);
-    CFRelease(space);
-
-    CGContextSetAllowsFontSubpixelQuantization(cg, false);
-    CGContextSetShouldSubpixelQuantizeFonts(cg, false);
-
-    return cg;
-}
-
-extern CTFontRef SkTypeface_GetCTFontRef(const SkTypeface* face);
-
-static CGFontRef typefaceToCGFont(const SkTypeface* face) {
-    if (NULL == face) {
-        return 0;
-    }
-
-    CTFontRef ct = SkTypeface_GetCTFontRef(face);
-    return CTFontCopyGraphicsFont(ct, NULL);
-}
-
-static void cgSetPaintForText(CGContextRef cg, const SkPaint& paint) {
-    SkColor c = paint.getColor();
-    CGFloat rgba[] = {
-        SkColorGetB(c) / 255.0f,
-        SkColorGetG(c) / 255.0f,
-        SkColorGetR(c) / 255.0f,
-        SkColorGetA(c) / 255.0f,
-    };
-    CGContextSetRGBFillColor(cg, rgba[0], rgba[1], rgba[2], rgba[3]);
-
-    CGContextSetTextDrawingMode(cg, kCGTextFill);
-    CGContextSetFont(cg, typefaceToCGFont(paint.getTypeface()));
-    CGContextSetFontSize(cg, SkScalarToFloat(paint.getTextSize()));
-
-    CGContextSetAllowsFontSubpixelPositioning(cg, paint.isSubpixelText());
-    CGContextSetShouldSubpixelPositionFonts(cg, paint.isSubpixelText());
-
-    CGContextSetShouldAntialias(cg, paint.isAntiAlias());
-    CGContextSetShouldSmoothFonts(cg, paint.isLCDRenderText());
-}
-
-static void cgDrawText(CGContextRef cg, const void* text, size_t len,
-                       float x, float y, const SkPaint& paint) {
-    if (cg) {
-        cgSetPaintForText(cg, paint);
-
-        uint16_t glyphs[200];
-        int count = paint.textToGlyphs(text, len, glyphs);
-
-        CGContextShowGlyphsAtPoint(cg, x, y, glyphs, count);
-    }
-}
-#endif
-
 /**
    Test a set of clipping problems discovered while writing blitAntiRect,
    and test all the code paths through the clipping blitters.
@@ -109,28 +38,18 @@ static void cgDrawText(CGContextRef cg, const void* text, size_t len,
 #define HEIGHT 480
 
 class GammaTextGM : public skiagm::GM {
-public:
-    GammaTextGM() {
-
-    }
-
 protected:
-    virtual SkString onShortName() {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("gammatext");
     }
 
-    virtual SkISize onISize() {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(1024, HEIGHT);
     }
 
     static void drawGrad(SkCanvas* canvas) {
         SkPoint pts[] = { { 0, 0 }, { 0, SkIntToScalar(HEIGHT) } };
-#if 0
-        const SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE };
-        SkShader* s = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode);
-#else
         SkShader* s = make_heatGradient(pts);
-#endif
 
         canvas->clear(SK_ColorRED);
         SkPaint paint;
@@ -139,19 +58,7 @@ protected:
         canvas->drawRect(r, paint);
     }
 
-    virtual void onDraw(SkCanvas* canvas) {
-#ifdef SK_BUILD_FOR_MAC
-        CGContextRef cg = 0;
-        {
-            SkImageInfo info;
-            size_t rowBytes;
-            const void* addr = canvas->peekPixels(&info, &rowBytes);
-            if (addr) {
-                cg = makeCG(info, addr, rowBytes);
-            }
-        }
-#endif
-
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         drawGrad(canvas);
 
         const SkColor fg[] = {
@@ -177,23 +84,11 @@ protected:
             SkScalar y = SkIntToScalar(40);
             SkScalar stopy = SkIntToScalar(HEIGHT);
             while (y < stopy) {
-                if (true) {
-                    canvas->drawText(text, len, x, y, paint);
-                }
-#ifdef SK_BUILD_FOR_MAC
-                else {
-                    cgDrawText(cg, text, len, SkScalarToFloat(x),
-                               static_cast<float>(HEIGHT) - SkScalarToFloat(y),
-                               paint);
-                }
-#endif
+                canvas->drawText(text, len, x, y, paint);
                 y += paint.getTextSize() * 2;
             }
             x += SkIntToScalar(1024) / SK_ARRAY_COUNT(fg);
         }
-#ifdef SK_BUILD_FOR_MAC
-        CGContextRelease(cg);
-#endif
     }
 
 private:
@@ -242,28 +137,28 @@ public:
         }
     }
 
-    virtual ~GammaShaderTextGM() {
+    virtual ~GammaShaderTextGM() SK_OVERRIDE {
         for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) {
             SkSafeUnref(fShaders[i]);
         }
     }
 
 protected:
-    virtual SkString onShortName() {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("gammagradienttext");
     }
     
-    virtual SkISize onISize() {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(300, 300);
     }
 
-    virtual void onOnceBeforeDraw() {
+    void onOnceBeforeDraw() SK_OVERRIDE {
         for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) {
             fShaders[i] = make_gradient(fColors[i]);
         }
     }
 
-    virtual void onDraw(SkCanvas* canvas) {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
         paint.setAntiAlias(true);
         paint.setLCDRenderText(true);