Revert of Switch uses of SkChecksum::Compute to Murmur3.

tests/ChecksumTest.cpp

Index: tests/ChecksumTest.cpp
diff --git a/tests/ChecksumTest.cpp b/tests/ChecksumTest.cpp
index cf9d65c59edbb6f344c0f7b945443d7b21fbdf3c..c095a5ac11d356b4d0c7f4be0c9dccf8259e3f6a 100644
--- a/tests/ChecksumTest.cpp
+++ b/tests/ChecksumTest.cpp
@@ -18,7 +18,7 @@
 DEF_TEST(Checksum, r) {
     // Algorithms to test.  They're currently all uint32_t(const uint32_t*, size_t).
     typedef uint32_t(*algorithmProc)(const uint32_t*, size_t);
-    const algorithmProc kAlgorithms[] = { &murmur_noseed };
+    const algorithmProc kAlgorithms[] = { &SkChecksum::Compute, &murmur_noseed };
 
     // Put 128 random bytes into two identical buffers.  Any multiple of 4 will do.
     const size_t kBytes = SkAlign4(128);