Remove TSan annotations from base/

, because ThreadSanitizer v2 doesn't need base::subtle to be annotated.
We can't drop the dependency on libdynamic_annotations yet, because some code calls RunningOnValgrind().
Also remove the unused dynamic_annotations.h headers from base/ and add one to content/test/, which uses RunningOnValgrind().

BUG=349861
R=ajwong@chromium.org,phajdan.jr@chromium.org

Review URL: https://codereview.chromium.org/580813002

Cr-Commit-Position: refs/heads/master@{#296265}

base/atomic_ref_count.h

@@ -12,7 +12,6 @@
 #define BASE_ATOMIC_REF_COUNT_H_
 
 #include "base/atomicops.h"
-#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 
 namespace base {
 
@@ -30,11 +29,7 @@ inline void AtomicRefCountIncN(volatile AtomicRefCount *ptr,
 // became zero will be visible to a thread that has just made the count zero.
 inline bool AtomicRefCountDecN(volatile AtomicRefCount *ptr,
                                AtomicRefCount decrement) {
-  ANNOTATE_HAPPENS_BEFORE(ptr);
   bool res = (subtle::Barrier_AtomicIncrement(ptr, -decrement) != 0);
-  if (!res) {
-    ANNOTATE_HAPPENS_AFTER(ptr);
-  }
   return res;
 }
 
@@ -58,9 +53,6 @@ inline bool AtomicRefCountDec(volatile AtomicRefCount *ptr) {
 // exclusive access to the object.
 inline bool AtomicRefCountIsOne(volatile AtomicRefCount *ptr) {
   bool res = (subtle::Acquire_Load(ptr) == 1);
-  if (res) {
-    ANNOTATE_HAPPENS_AFTER(ptr);
-  }
   return res;
 }
 
@@ -69,9 +61,6 @@ inline bool AtomicRefCountIsOne(volatile AtomicRefCount *ptr) {
 // should never be zero.  Hence this is generally used for a debug check.
 inline bool AtomicRefCountIsZero(volatile AtomicRefCount *ptr) {
   bool res = (subtle::Acquire_Load(ptr) == 0);
-  if (res) {
-    ANNOTATE_HAPPENS_AFTER(ptr);
-  }
   return res;
 }
 

base/lazy_instance.cc

@@ -8,7 +8,6 @@
 #include "base/atomicops.h"
 #include "base/basictypes.h"
 #include "base/threading/platform_thread.h"
-#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 
 namespace base {
 namespace internal {
@@ -42,9 +41,6 @@ void CompleteLazyInstance(subtle::AtomicWord* state,
                           subtle::AtomicWord new_instance,
                           void* lazy_instance,
                           void (*dtor)(void*)) {
-  // See the comment to the corresponding HAPPENS_AFTER in Pointer().
-  ANNOTATE_HAPPENS_BEFORE(state);
-
   // Instance is created, go from CREATING to CREATED.
   // Releases visibility over private_buf_ to readers. Pairing Acquire_Load's
   // are in NeedsInstance() and Pointer().

base/lazy_instance.h

@@ -43,7 +43,6 @@
 #include "base/debug/leak_annotations.h"
 #include "base/logging.h"
 #include "base/memory/aligned_memory.h"
-#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread_restrictions.h"
 
 // LazyInstance uses its own struct initializer-list style static
@@ -166,13 +165,6 @@ class LazyInstance {
       internal::CompleteLazyInstance(&private_instance_, value, this,
                                      Traits::kRegisterOnExit ? OnExit : NULL);
     }
-
-    // This annotation helps race detectors recognize correct lock-less
-    // synchronization between different threads calling Pointer().
-    // We suggest dynamic race detection tool that "Traits::New" above
-    // and CompleteLazyInstance(...) happens before "return instance()" below.
-    // See the corresponding HAPPENS_BEFORE in CompleteLazyInstance(...).
-    ANNOTATE_HAPPENS_AFTER(&private_instance_);
     return instance();
   }
 

base/vlog_unittest.cc

@@ -6,7 +6,6 @@
 
 #include "base/basictypes.h"
 #include "base/logging.h"
-#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 

content/test/blink_test_environment.cc

@@ -10,6 +10,7 @@
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string_tokenizer.h"
+#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/user_agent.h"
 #include "content/public/test/test_content_client_initializer.h"