Reland https://codereview.chromium.org/276493002: Enable ToolsSanityTest.SingleElementDeletedWithBr…

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 b1da3e1aa59fc79a4fe5391d208614bf634deda0..3787a98d275ebf4a60953e04776c8382ac73b45c 100644
--- a/base/tools_sanity_unittest.cc
+++ b/base/tools_sanity_unittest.cc
@@ -100,24 +100,25 @@ TEST(ToolsSanityTest, MemoryLeak) {
 // error report mechanism is different than with Asan so these tests will fail.
 #define MAYBE_AccessesToNewMemory DISABLED_AccessesToNewMemory
 #define MAYBE_AccessesToMallocMemory DISABLED_AccessesToMallocMemory
+#define MAYBE_SingleElementDeletedWithBraces \
+    DISABLED_SingleElementDeletedWithBraces
+#define MAYBE_ArrayDeletedWithoutBraces DISABLED_ArrayDeletedWithoutBraces
 #else
 #define MAYBE_AccessesToNewMemory AccessesToNewMemory
 #define MAYBE_AccessesToMallocMemory AccessesToMallocMemory
+
+#if defined(ADDRESS_SANITIZER) && !defined(OS_MACOSX)
+// AddressSanitizer for OSX doesn't support alloc-dealloc mismatch checks.
 #define MAYBE_ArrayDeletedWithoutBraces ArrayDeletedWithoutBraces
 #define MAYBE_SingleElementDeletedWithBraces SingleElementDeletedWithBraces
-#endif
-
-// The following tests pass with Clang r170392, but not r172454, which
-// makes AddressSanitizer detect errors in them. We disable these tests under
-// AddressSanitizer until we fully switch to Clang r172454. After that the
-// tests should be put back under the (defined(OS_IOS) || defined(OS_WIN))
-// clause above.
-// See also http://crbug.com/172614.
-#if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
+#else
+#define MAYBE_ArrayDeletedWithoutBraces DISABLED_ArrayDeletedWithoutBraces
 #define MAYBE_SingleElementDeletedWithBraces \
     DISABLED_SingleElementDeletedWithBraces
-#define MAYBE_ArrayDeletedWithoutBraces DISABLED_ArrayDeletedWithoutBraces
 #endif
+
+#endif
+
 TEST(ToolsSanityTest, MAYBE_AccessesToNewMemory) {
   char *foo = new char[10];
   MakeSomeErrors(foo, 10);
@@ -144,7 +145,12 @@ TEST(ToolsSanityTest, MAYBE_ArrayDeletedWithoutBraces) {
 
   // Without the |volatile|, clang optimizes away the next two lines.
   int* volatile foo = new int[10];
-  delete foo;
+  HARMFUL_ACCESS(delete foo, "alloc-dealloc-mismatch");
+#if defined(ADDRESS_SANITIZER)
+  // Under ASan the crash happens in the process spawned by HARMFUL_ACCESS,
+  // need to free the memory in the parent.
+  delete [] foo;
+#endif
 }
 
 TEST(ToolsSanityTest, MAYBE_SingleElementDeletedWithBraces) {
@@ -158,7 +164,12 @@ TEST(ToolsSanityTest, MAYBE_SingleElementDeletedWithBraces) {
   // Without the |volatile|, clang optimizes away the next two lines.
   int* volatile foo = new int;
   (void) foo;
-  delete [] foo;
+  HARMFUL_ACCESS(delete [] foo, "alloc-dealloc-mismatch");
+#if defined(ADDRESS_SANITIZER)
+  // Under ASan the crash happens in the child process, need to free the memory
+  // in the parent.
+  delete foo;
+#endif
 }
 
 #if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)