SkPDF: clean up overuse of SK_SUPPORT_PDF

tests/DeflateWStream.cpp

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkFlate.h"
-#include "SkRandom.h"
-#include "Test.h"
-
-#if SK_SUPPORT_PDF
-
-DEF_TEST(SkDeflateWStream, r) {
-    SkRandom random(123456);
-    for (int i = 0; i < 50; ++i) {
-        uint32_t size = random.nextULessThan(10000);
-        SkAutoTMalloc<uint8_t> buffer(size);
-        for (uint32_t j = 0; j < size; ++j) {
-            buffer[j] = random.nextU() & 0xff;
-        }
-
-        SkDynamicMemoryWStream dynamicMemoryWStream;
-        {
-            SkDeflateWStream deflateWStream(&dynamicMemoryWStream);
-            uint32_t j = 0;
-            while (j < size) {
-                uint32_t writeSize =
-                        SkTMin(size - j, random.nextRangeU(1, 400));
-                if (!deflateWStream.write(&buffer[j], writeSize)) {
-                    ERRORF(r, "something went wrong.");
-                    return;
-                }
-                j += writeSize;
-            }
-        }
-        SkAutoTDelete<SkStreamAsset> compressed(
-                dynamicMemoryWStream.detachAsStream());
-
-        SkDynamicMemoryWStream decompressedDynamicMemoryWStream;
-        SkAssertResult(SkFlate::Inflate(compressed,
-                                        &decompressedDynamicMemoryWStream));
-
-        SkAutoTDelete<SkStreamAsset> decompressed(
-                decompressedDynamicMemoryWStream.detachAsStream());
-
-        if (decompressed->getLength() != size) {
-            ERRORF(r, "Decompression failed to get right size [%d]."
-                   " %u != %u", i,  (unsigned)(decompressed->getLength()),
-                   (unsigned)size);
-            SkString s = SkStringPrintf("/tmp/deftst_compressed_%d", i);
-            SkFILEWStream o(s.c_str());
-            o.writeStream(compressed.get(), compressed->getLength());
-            compressed->rewind();
-
-            s = SkStringPrintf("/tmp/deftst_input_%d", i);
-            SkFILEWStream o2(s.c_str());
-            o2.write(&buffer[0], size);
-
-            continue;
-        }
-        uint32_t minLength = SkTMin(size,
-                                    (uint32_t)(decompressed->getLength()));
-        for (uint32_t i = 0; i < minLength; ++i) {
-            uint8_t c;
-            SkDEBUGCODE(size_t rb =)decompressed->read(&c, sizeof(uint8_t));
-            SkASSERT(sizeof(uint8_t) == rb);
-            if (buffer[i] != c) {
-                ERRORF(r, "Decompression failed at byte %u.", (unsigned)i);
-                break;
-            }
-        }
-    }
-}
-#endif  // SK_SUPPORT_PDF