Do not instrument mutate.cc and generate.cc with AddressSanitizer

tools/ipc_fuzzer/mutate/mutate.gyp

Index: tools/ipc_fuzzer/mutate/mutate.gyp
diff --git a/tools/ipc_fuzzer/mutate/mutate.gyp b/tools/ipc_fuzzer/mutate/mutate.gyp
index 2dbe6e692f962d704d4d077e3c19d6de18f9388c..f1d5abd3981c4c72c3ed886006bd5b0c71c71f73 100644
--- a/tools/ipc_fuzzer/mutate/mutate.gyp
+++ b/tools/ipc_fuzzer/mutate/mutate.gyp
@@ -27,6 +27,15 @@
         'rand_util.h',
         'rand_util.cc',
       ],
+      'conditions': [
+        ['asan==1', {
+          'cflags!': [
+            # Compiling mutate.cc with ASan takes too long, see
+            # http://crbug.com/360158.
+            '-fsanitize=address',
+          ],
+        }],
+      ],
       'include_dirs': [
         '../../..',
       ],
@@ -54,6 +63,15 @@
         'rand_util.h',
         'rand_util.cc',
       ],
+      'conditions': [
+        ['asan==1', {
+          'cflags!': [
+            # Compiling generate.cc with ASan takes too long, see
+            # http://crbug.com/360158.
+            '-fsanitize=address',
+          ],
+        }],
+      ],
       'include_dirs': [
         '../../..',
       ],