Update mojo sdk to rev c02a28868825edfa57ab77947b8cb15e741c5598

third_party/mojo/src/mojo/edk/system/thread_annotations.h

Index: third_party/mojo/src/mojo/edk/system/thread_annotations.h
diff --git a/third_party/mojo/src/mojo/edk/system/thread_annotations.h b/third_party/mojo/src/mojo/edk/system/thread_annotations.h
new file mode 100644
index 0000000000000000000000000000000000000000..ffac5580821c68cf5f5407a8d157997167356312
--- /dev/null
+++ b/third_party/mojo/src/mojo/edk/system/thread_annotations.h
@@ -0,0 +1,85 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Macros for static thread-safety analysis.
+//
+// These are from http://clang.llvm.org/docs/ThreadSafetyAnalysis.html (and thus
+// really derive from google3's thread_annotations.h).
+//
+// TODO(vtl): We're still using the old-fashioned, deprecated annotations
+// ("locks" instead of "capabilities"), since the new ones don't work yet (in
+// particular, |TRY_ACQUIRE()| doesn't work: b/19264527).
+// https://github.com/domokit/mojo/issues/314
+
+#ifndef MOJO_EDK_SYSTEM_THREAD_ANNOTATIONS_H_
+#define MOJO_EDK_SYSTEM_THREAD_ANNOTATIONS_H_
+
+// Enable thread-safety attributes only with clang.
+// The attributes can be safely erased when compiling with other compilers.
+#if defined(__clang__)
+#define MOJO_THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x))
+#else
+#define MOJO_THREAD_ANNOTATION_ATTRIBUTE__(x)
+#endif
+
+#define MOJO_GUARDED_BY(x) MOJO_THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
+
+#define MOJO_PT_GUARDED_BY(x) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
+
+#define MOJO_ACQUIRED_AFTER(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__))
+
+#define MOJO_ACQUIRED_BEFORE(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__))
+
+#define MOJO_EXCLUSIVE_LOCKS_REQUIRED(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__))
+
+#define MOJO_SHARED_LOCKS_REQUIRED(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__))
+
+#define MOJO_LOCKS_EXCLUDED(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__))
+
+#define MOJO_LOCK_RETURNED(x) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+
+#define MOJO_LOCKABLE MOJO_THREAD_ANNOTATION_ATTRIBUTE__(lockable)
+
+#define MOJO_SCOPED_LOCKABLE MOJO_THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+
+#define MOJO_EXCLUSIVE_LOCK_FUNCTION(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
+
+#define MOJO_SHARED_LOCK_FUNCTION(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
+
+#define MOJO_ASSERT_EXCLUSIVE_LOCK(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__))
+
+#define MOJO_ASSERT_SHARED_LOCK(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__))
+
+#define MOJO_EXCLUSIVE_TRYLOCK_FUNCTION(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
+
+#define MOJO_SHARED_TRYLOCK_FUNCTION(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
+
+#define MOJO_UNLOCK_FUNCTION(...) \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
+
+#define MOJO_NO_THREAD_SAFETY_ANALYSIS \
+  MOJO_THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
+
+// Use this in the header to annotate a function/method as not being
+// thread-safe. This is equivalent to |MOJO_NO_THREAD_SAFETY_ANALYSIS|, but
+// semantically different: it declares that the caller must abide by additional
+// restrictions. Limitation: Unfortunately, you can't apply this to a method in
+// an interface (i.e., pure virtual method) and have it applied automatically to
+// implementations.
+#define MOJO_NOT_THREAD_SAFE MOJO_NO_THREAD_SAFETY_ANALYSIS
+
+#endif  // MOJO_EDK_SYSTEM_THREAD_ANNOTATIONS_H_