remove unused SkAutoROCanvasPixels

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1550583002

TBR=

Review URL: https://codereview.chromium.org/1550583002

1 files changed, 0 insertions, 25 deletions

diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index d72ec7ffc9..a76f5a3b9f 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -1395,31 +1395,6 @@ bool SkCanvas::onAccessTopLayerPixels(SkPixmap* pmap) {
     return dev && dev->accessPixels(pmap);
 }
 
-SkAutoROCanvasPixels::SkAutoROCanvasPixels(SkCanvas* canvas) {
-    fAddr = canvas->peekPixels(&fInfo, &fRowBytes);
-    if (nullptr == fAddr) {
-        fInfo = canvas->imageInfo();
-        if (kUnknown_SkColorType == fInfo.colorType() || !fBitmap.tryAllocPixels(fInfo)) {
-            return; // failure, fAddr is nullptr
-        }
-        if (!canvas->readPixels(&fBitmap, 0, 0)) {
-            return; // failure, fAddr is nullptr
-        }
-        fAddr = fBitmap.getPixels();
-        fRowBytes = fBitmap.rowBytes();
-    }
-    SkASSERT(fAddr);    // success
-}
-
-bool SkAutoROCanvasPixels::asROBitmap(SkBitmap* bitmap) const {
-    if (fAddr) {
-        return bitmap->installPixels(fInfo, const_cast<void*>(fAddr), fRowBytes);
-    } else {
-        bitmap->reset();
-        return false;
-    }
-}
-
 /////////////////////////////////////////////////////////////////////////////
 
 void SkCanvas::internalDrawDevice(SkBaseDevice* srcDev, int x, int y,