Revert "guard old apis for querying byte-size of a bitmap/imageinfo/pixmap"

This reverts commit 88757dacd4f532a0f647c02ae0ee596d31ab5c68.

Reason for revert: Still seems to be failing Chromium "telemetry_perf_unittests (with patch) on Android" on android_n5x_swarming_rel.

Original change's description:
> guard old apis for querying byte-size of a bitmap/imageinfo/pixmap
> 
> Now with legacy behavior for allocpixels
> 
> This was reverted, so the current CL is a "fix" on top of ...
> https://skia-review.googlesource.com/c/skia/+/50980
> 
> Related update to Chrome (in preparation for this change)
> https://chromium-review.googlesource.com/c/chromium/src/+/685719
> 
> Bug: skia:
> Change-Id: I4b370ee7e95083ab27421f008132219c9c7b86e9
> Reviewed-on: https://skia-review.googlesource.com/51341
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Commit-Queue: Mike Reed <reed@google.com>

TBR=fmalita@chromium.org,reed@google.com

Change-Id: I827a0ca1d1e3909e648fde3342cdb8601d34da8d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/52381
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
diff --git a/src/image/SkSurface_Raster.cpp b/src/image/SkSurface_Raster.cpp
index e9d14fe..3869487 100644
--- a/src/image/SkSurface_Raster.cpp
+++ b/src/image/SkSurface_Raster.cpp
@@ -162,7 +162,7 @@
             fBitmap.allocPixels();
             SkASSERT(prev.info() == fBitmap.info());
             SkASSERT(prev.rowBytes() == fBitmap.rowBytes());
-            memcpy(fBitmap.getPixels(), prev.getPixels(), fBitmap.computeByteSize());
+            memcpy(fBitmap.getPixels(), prev.getPixels(), fBitmap.getSafeSize());
         }
         SkASSERT(fBitmap.rowBytes() == fRowBytes);  // be sure we always use the same value