diff --git a/runtime/common_runtime_test.cc b/runtime/common_runtime_test.cc
index 78ba6e7..15724a1 100644
--- a/runtime/common_runtime_test.cc
+++ b/runtime/common_runtime_test.cc
@@ -68,6 +68,74 @@
 
 using android::base::StringPrintf;
 
+static const uint8_t kBase64Map[256] = {
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255,  62, 255, 255, 255,  63,
+  52,  53,  54,  55,  56,  57,  58,  59,  60,  61, 255, 255,
+  255, 254, 255, 255, 255,   0,   1,   2,   3,   4,   5,   6,
+    7,   8,   9,  10,  11,  12,  13,  14,  15,  16,  17,  18,  // NOLINT
+   19,  20,  21,  22,  23,  24,  25, 255, 255, 255, 255, 255,  // NOLINT
+  255,  26,  27,  28,  29,  30,  31,  32,  33,  34,  35,  36,
+   37,  38,  39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  // NOLINT
+   49,  50,  51, 255, 255, 255, 255, 255, 255, 255, 255, 255,  // NOLINT
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255
+};
+
+uint8_t* DecodeBase64(const char* src, size_t* dst_size) {
+  CHECK(dst_size != nullptr);
+  std::vector<uint8_t> tmp;
+  uint32_t t = 0, y = 0;
+  int g = 3;
+  for (size_t i = 0; src[i] != '\0'; ++i) {
+    uint8_t c = kBase64Map[src[i] & 0xFF];
+    if (c == 255) continue;
+    // the final = symbols are read and used to trim the remaining bytes
+    if (c == 254) {
+      c = 0;
+      // prevent g < 0 which would potentially allow an overflow later
+      if (--g < 0) {
+        *dst_size = 0;
+        return nullptr;
+      }
+    } else if (g != 3) {
+      // we only allow = to be at the end
+      *dst_size = 0;
+      return nullptr;
+    }
+    t = (t << 6) | c;
+    if (++y == 4) {
+      tmp.push_back((t >> 16) & 255);
+      if (g > 1) {
+        tmp.push_back((t >> 8) & 255);
+      }
+      if (g > 2) {
+        tmp.push_back(t & 255);
+      }
+      y = t = 0;
+    }
+  }
+  if (y != 0) {
+    *dst_size = 0;
+    return nullptr;
+  }
+  std::unique_ptr<uint8_t[]> dst(new uint8_t[tmp.size()]);
+  *dst_size = tmp.size();
+  std::copy(tmp.begin(), tmp.end(), dst.get());
+  return dst.release();
+}
+
 ScratchFile::ScratchFile() {
   // ANDROID_DATA needs to be set
   CHECK_NE(static_cast<char*>(nullptr), getenv("ANDROID_DATA")) <<
diff --git a/runtime/common_runtime_test.h b/runtime/common_runtime_test.h
index d7abe2a..bfa273d 100644
--- a/runtime/common_runtime_test.h
+++ b/runtime/common_runtime_test.h
@@ -44,6 +44,8 @@
 class Runtime;
 typedef std::vector<std::pair<std::string, const void*>> RuntimeOptions;
 
+uint8_t* DecodeBase64(const char* src, size_t* dst_size);
+
 class ScratchFile {
  public:
   ScratchFile();
diff --git a/runtime/utils.cc b/runtime/utils.cc
index 6a20eaf..8d216ce 100644
--- a/runtime/utils.cc
+++ b/runtime/utils.cc
@@ -52,77 +52,6 @@
 using android::base::StringAppendF;
 using android::base::StringPrintf;
 
-static const uint8_t kBase64Map[256] = {
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255,  62, 255, 255, 255,  63,
-  52,  53,  54,  55,  56,  57,  58,  59,  60,  61, 255, 255,
-  255, 254, 255, 255, 255,   0,   1,   2,   3,   4,   5,   6,
-    7,   8,   9,  10,  11,  12,  13,  14,  15,  16,  17,  18,  // NOLINT
-   19,  20,  21,  22,  23,  24,  25, 255, 255, 255, 255, 255,  // NOLINT
-  255,  26,  27,  28,  29,  30,  31,  32,  33,  34,  35,  36,
-   37,  38,  39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  // NOLINT
-   49,  50,  51, 255, 255, 255, 255, 255, 255, 255, 255, 255,  // NOLINT
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-  255, 255, 255, 255
-};
-
-uint8_t* DecodeBase64(const char* src, size_t* dst_size) {
-  std::vector<uint8_t> tmp;
-  uint32_t t = 0, y = 0;
-  int g = 3;
-  for (size_t i = 0; src[i] != '\0'; ++i) {
-    uint8_t c = kBase64Map[src[i] & 0xFF];
-    if (c == 255) continue;
-    // the final = symbols are read and used to trim the remaining bytes
-    if (c == 254) {
-      c = 0;
-      // prevent g < 0 which would potentially allow an overflow later
-      if (--g < 0) {
-        *dst_size = 0;
-        return nullptr;
-      }
-    } else if (g != 3) {
-      // we only allow = to be at the end
-      *dst_size = 0;
-      return nullptr;
-    }
-    t = (t << 6) | c;
-    if (++y == 4) {
-      tmp.push_back((t >> 16) & 255);
-      if (g > 1) {
-        tmp.push_back((t >> 8) & 255);
-      }
-      if (g > 2) {
-        tmp.push_back(t & 255);
-      }
-      y = t = 0;
-    }
-  }
-  if (y != 0) {
-    *dst_size = 0;
-    return nullptr;
-  }
-  std::unique_ptr<uint8_t[]> dst(new uint8_t[tmp.size()]);
-  if (dst_size != nullptr) {
-    *dst_size = tmp.size();
-  } else {
-    *dst_size = 0;
-  }
-  std::copy(tmp.begin(), tmp.end(), dst.get());
-  return dst.release();
-}
-
 pid_t GetTid() {
 #if defined(__APPLE__)
   uint64_t owner;
diff --git a/runtime/utils.h b/runtime/utils.h
index 24fd205..2011d9e 100644
--- a/runtime/utils.h
+++ b/runtime/utils.h
@@ -70,8 +70,6 @@
   return intp & 0xFFFFFFFFU;
 }
 
-uint8_t* DecodeBase64(const char* src, size_t* dst_size);
-
 std::string PrintableChar(uint16_t ch);
 
 // Returns an ASCII string corresponding to the given UTF-8 string.