base_unittests: move local functions into an anonymous namespace

base/tools_sanity_unittest.cc

Index: base/tools_sanity_unittest.cc
diff --git a/base/tools_sanity_unittest.cc b/base/tools_sanity_unittest.cc
index 47a19b3fd7cd33d7553fd6bb49b74708cf126501..0f213818fe598626e54c56898c51f0610462cc7a 100644
--- a/base/tools_sanity_unittest.cc
+++ b/base/tools_sanity_unittest.cc
@@ -27,14 +27,6 @@ class TOOLS_SANITY_TEST_CONCURRENT_THREAD : public PlatformThread::Delegate {
   bool *value_;
 };
 
-}
-
-// A memory leak detector should report an error in this test.
-TEST(ToolsSanityTest, MemoryLeak) {
-  int *leak = new int[256];  // Leak some memory intentionally.
-  leak[4] = 1;  // Make sure the allocated memory is used.
-}
-
 void ReadUninitializedValue(char *ptr) {
   if (*ptr == '\0') {
     (*ptr)++;
@@ -77,6 +69,14 @@ void MakeSomeErrors(char *ptr, size_t size) {
 #endif
 }
 
+}  // namespace
+
+// A memory leak detector should report an error in this test.
+TEST(ToolsSanityTest, MemoryLeak) {
+  int *leak = new int[256];  // Leak some memory intentionally.
+  leak[4] = 1;  // Make sure the allocated memory is used.
+}
+
 TEST(ToolsSanityTest, AccessesToNewMemory) {
   // This test may corrupt memory if not run under Valgrind.
   if (!RunningOnValgrind())