Use android::skia::BitmapRegionDecoder

Bug: skbug.com/10154
Bug: 140600285
Test: BitmapRegionDecoderTest in CtsGraphicsTestCases

Skia is renaming this class in https://skia-review.googlesource.com/c/skia/+/287498
Use the new name for this and android::skia::BitmapRegionDecoder.

Convert CopyAssetToStream to CopyAssetToData. It was already using an
SkData, held by an SkMemoryStream. Using an SkData directly will allow
sharing it with other decoders for a multithreaded BitmapRegionDecoder.
Remove comment about ref/reopen-ing the asset.

Change-Id: Ib51a8d697ad0f5dc1f461257311b31443b5f9dfb
diff --git a/libs/hwui/jni/CreateJavaOutputStreamAdaptor.cpp b/libs/hwui/jni/CreateJavaOutputStreamAdaptor.cpp
index f1c6b29..785a5dc 100644
--- a/libs/hwui/jni/CreateJavaOutputStreamAdaptor.cpp
+++ b/libs/hwui/jni/CreateJavaOutputStreamAdaptor.cpp
@@ -177,8 +177,12 @@
     return JavaInputStreamAdaptor::Create(env, stream, storage, swallowExceptions);
 }
 
-static SkMemoryStream* adaptor_to_mem_stream(SkStream* stream) {
-    SkASSERT(stream != NULL);
+sk_sp<SkData> CopyJavaInputStream(JNIEnv* env, jobject inputStream, jbyteArray storage) {
+    std::unique_ptr<SkStream> stream(CreateJavaInputStreamAdaptor(env, inputStream, storage));
+    if (!stream) {
+        return nullptr;
+    }
+
     size_t bufferSize = 4096;
     size_t streamLen = 0;
     size_t len;
@@ -194,18 +198,7 @@
     }
     data = (char*)sk_realloc_throw(data, streamLen);
 
-    SkMemoryStream* streamMem = new SkMemoryStream();
-    streamMem->setMemoryOwned(data, streamLen);
-    return streamMem;
-}
-
-SkStreamRewindable* CopyJavaInputStream(JNIEnv* env, jobject stream,
-                                        jbyteArray storage) {
-    std::unique_ptr<SkStream> adaptor(CreateJavaInputStreamAdaptor(env, stream, storage));
-    if (NULL == adaptor.get()) {
-        return NULL;
-    }
-    return adaptor_to_mem_stream(adaptor.get());
+    return SkData::MakeFromMalloc(data, streamLen);
 }
 
 ///////////////////////////////////////////////////////////////////////////////