15     FrontBufferedStream(SkStream*, size_t bufferSize);
17     size_t read(void* buffer, size_t size) override;
19     size_t peek(void* buffer, size_t size) const override;
27     size_t getLength() const override { return fLength; }  in getLength()
34     const size_t            fLength;
36     size_t                  fOffset;
39     size_t                  fBufferedSoFar;
41     const size_t            fBufferSize;
49     size_t readFromBuffer(char* dst, size_t size);
54     size_t bufferAndWriteTo(char* dst, size_t size);
59     size_t readDirectlyFromStream(char* dst, size_t size);
64 SkStreamRewindable* SkFrontBufferedStream::Create(SkStream* stream, size_t bufferSize) {  in Create()
71 FrontBufferedStream::FrontBufferedStream(SkStream* stream, size_t bufferSize)  in FrontBufferedStream()
99 size_t FrontBufferedStream::readFromBuffer(char* dst, size_t size) {  in readFromBuffer()
104     const size_t bytesToCopy = SkTMin(size, fBufferedSoFar - fOffset);  in readFromBuffer()
117 size_t FrontBufferedStream::bufferAndWriteTo(char* dst, size_t size) {  in bufferAndWriteTo()
123     const size_t bytesToBuffer = SkTMin(size, fBufferSize - fBufferedSoFar);  in bufferAndWriteTo()
125     const size_t buffered = fStream->read(buffer, bytesToBuffer);  in bufferAndWriteTo()
139 size_t FrontBufferedStream::readDirectlyFromStream(char* dst, size_t size) {  in readDirectlyFromStream()
144     const size_t bytesReadDirectly = fStream->read(dst, size);  in readDirectlyFromStream()
156 size_t FrontBufferedStream::peek(void* dst, size_t size) const {  in peek()
158     const size_t start = fOffset;  in peek()
167     const size_t bytesRead = nonConstThis->read(dst, size);  in peek()
172 size_t FrontBufferedStream::read(void* voidDst, size_t size) {  in read()
175     SkDEBUGCODE(const size_t totalSize = size;)  in read()
176     const size_t start = fOffset;  in read()
180         const size_t bytesCopied = this->readFromBuffer(dst, size);  in read()
194         const size_t buffered = this->bufferAndWriteTo(dst, size);  in read()
206         SkDEBUGCODE(const size_t bytesReadDirectly =) this->readDirectlyFromStream(dst, size);  in read()