Migrate WebRequestRedirectByRegExAction to use RE2 and roll RE2 to revision 97:401ab4168e8e

third_party/re2/patches/remove-valgrind-code.patch

-diff -r ceab86d470c1 re2/dfa.cc
---- a/re2/dfa.cc        Tue Jul 03 16:43:11 2012 +0200
-+++ b/re2/dfa.cc        Tue Jul 03 17:03:00 2012 +0200
+diff --git a/third_party/re2/re2/dfa.cc b/third_party/re2/re2/dfa.cc
+index 3a6a387..32c8c33 100644
+--- a/third_party/re2/re2/dfa.cc
++++ b/third_party/re2/re2/dfa.cc
 @@ -27,6 +27,8 @@
  #include "util/flags.h"
  #include "util/sparse_set.h"
  
 +#define NO_THREAD_SAFETY_ANALYSIS
 +
  DEFINE_bool(re2_dfa_bail_when_slow, true,
              "Whether the RE2 DFA should bail out early "
              "if the NFA would be faster (for testing).");
-diff -r ceab86d470c1 util/util.h
---- a/util/util.h       Tue Jul 03 16:43:11 2012 +0200
-+++ b/util/util.h       Tue Jul 03 17:03:00 2012 +0200
-@@ -28,6 +28,8 @@
+diff --git a/third_party/re2/util/util.h b/third_party/re2/util/util.h
+index a43ff76..63a9c6f 100644
+--- a/third_party/re2/util/util.h
++++ b/third_party/re2/util/util.h
+@@ -26,6 +26,8 @@
  #include <utility>
  #include <set>
  
 +#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 +
  // Use std names.
  using std::set;
  using std::pair;
-@@ -86,16 +88,6 @@
+@@ -80,17 +82,6 @@ template<bool> struct CompileAssert {};
  
  #define arraysize(array) (sizeof(array)/sizeof((array)[0]))
  
 -// Fake lock annotations.  For real ones, see
 -// http://code.google.com/p/data-race-test/
 -#define ANNOTATE_PUBLISH_MEMORY_RANGE(a, b)
 -#define ANNOTATE_IGNORE_WRITES_BEGIN()
 -#define ANNOTATE_IGNORE_WRITES_END()
 -#define ANNOTATE_BENIGN_RACE(a, b)
 -#define NO_THREAD_SAFETY_ANALYSIS
 -#define ANNOTATE_HAPPENS_BEFORE(x)
 -#define ANNOTATE_HAPPENS_AFTER(x)
+-#define ANNOTATE_UNPROTECTED_READ(x) (x)
 -
  class StringPiece;
  
  string CEscape(const StringPiece& src);
-@@ -121,8 +113,6 @@
+@@ -116,8 +107,6 @@ static inline uint64 Hash64StringWithSeed(const char* s, int len, uint32 seed) {
    return ((uint64)x << 32) | y;
  }
  
 -int RunningOnValgrind();
 -
  }  // namespace re2
  
  #include "util/arena.h"