zlib/pdf: remove HaveFlate(), depend on preprocessor defines

tests/FlateTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkData.h"
 #include "SkFlate.h"
 #include "SkStream.h"
 #include "Test.h"
 
+#ifndef SK_NO_FLATE
+
 // A memory stream that reports zero size with the standard call, like
 // an unseekable file stream would.
 class SkZeroSizeMemStream : public SkMemoryStream {
 public:
     virtual size_t read(void* buffer, size_t size) {
         if (buffer == NULL && size == 0)
             return 0;
         if (buffer == NULL && size == kGetSizeKey)
             size = 0;
         return SkMemoryStream::read(buffer, size);
@@ skipping 74 matching lines @@
 
     if (reporter->verbose()) {
         SkDebugf("Flate Test: \t input size: " SK_SIZE_T_SPECIFIER
                  "\tcompressed size: " SK_SIZE_T_SPECIFIER
                  "\tratio: %.4g\n",
                  dataSize, compressedSize, compressionRatio);
     }
 }
 
 DEF_TEST(Flate, reporter) {
-#ifndef SK_NO_FLATE
-    REPORTER_ASSERT(reporter, SkFlate::HaveFlate());
-#endif
-    if (SkFlate::HaveFlate()) {
-        SkMemoryStream memStream;
-        TestFlate(reporter, &memStream, 512);
-        TestFlate(reporter, &memStream, 10240);
+    SkMemoryStream memStream;
+    TestFlate(reporter, &memStream, 512);
+    TestFlate(reporter, &memStream, 10240);
 
-        SkZeroSizeMemStream fileStream;
-        TestFlate(reporter, &fileStream, 512);
-        TestFlate(reporter, &fileStream, 10240);
-    }
+    SkZeroSizeMemStream fileStream;
+    TestFlate(reporter, &fileStream, 512);
+    TestFlate(reporter, &fileStream, 10240);
 }
+#endif  // SK_NO_FLATE