Move calls to conversion_possible to SkCodec

Move common code into the base class, so subclasses need not call
conversion_possible.

Use SkEncodedInfo rather than SkImageInfo, and use the proper frame.

API Changes:
- SkAndroidCodec:
  - Add getEncodedInfo(), for SkBitmapRegionCodec
- SkEncodedInfo:
  - Add opaque() helper
- SkBitmapRegionDecoder:
  - Remove unused conversionSupported

(Split off from skia-review.googlesource.com/c/25746)

Bug: skia:5601
Change-Id: If4a40d4b98a3dd0afde2b6058f92315a393a5baf
Reviewed-on: https://skia-review.googlesource.com/34361
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/include/android/SkBitmapRegionDecoder.h b/include/android/SkBitmapRegionDecoder.h
index df0c370338..c41d11247b 100644
--- a/include/android/SkBitmapRegionDecoder.h
+++ b/include/android/SkBitmapRegionDecoder.h
@@ -63,11 +63,6 @@ public:
                               const SkIRect& desiredSubset, int sampleSize,
                               SkColorType colorType, bool requireUnpremul,
                               sk_sp<SkColorSpace> prefColorSpace = nullptr) = 0;
-    /*
-     * @param  Requested destination color type
-     * @return true if we support the requested color type and false otherwise
-     */
-    virtual bool conversionSupported(SkColorType colorType) = 0;
 
     virtual SkEncodedImageFormat getEncodedFormat() = 0;