Revert r14650 (Fix rendering artifacts in pull-saveLayers-forward mode - https://codereview.chromium.org/267293007) due to unit test failures




git-svn-id: http://skia.googlecode.com/svn/trunk@14654 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrPictureUtils.cpp b/src/gpu/GrPictureUtils.cpp
index 84a13be..a66f34c 100644
--- a/src/gpu/GrPictureUtils.cpp
+++ b/src/gpu/GrPictureUtils.cpp
@@ -137,7 +137,16 @@
         device->fInfo.fCTM.postTranslate(SkIntToScalar(-device->getOrigin().fX),
                                          SkIntToScalar(-device->getOrigin().fY));
 
-        device->fInfo.fOffset = device->getOrigin();
+        // We need the x & y values that will yield 'getOrigin' when transformed
+        // by 'draw.fMatrix'.
+        device->fInfo.fOffset.iset(device->getOrigin());
+
+        SkMatrix invMatrix;
+        if (draw.fMatrix->invert(&invMatrix)) {
+            invMatrix.mapPoints(&device->fInfo.fOffset, 1);
+        } else {
+            device->fInfo.fValid = false;
+        }
 
         if (NeedsDeepCopy(paint)) {
             // This NULL acts as a signal that the paint was uncopyable (for now)