Add m-esr52 at 52.6.0

1 files changed, 48 insertions, 0 deletions

diff --git a/layout/base/RestyleLogging.h b/layout/base/RestyleLogging.h
new file mode 100644
index 000000000..93c1c8ec6
--- /dev/null
+++ b/layout/base/RestyleLogging.h
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * Macros used to log restyle events.
+ */
+
+#ifndef mozilla_RestyleLogging_h
+#define mozilla_RestyleLogging_h
+
+#include "mozilla/AutoRestore.h"
+
+#ifdef DEBUG
+#define RESTYLE_LOGGING
+#endif
+
+#ifdef RESTYLE_LOGGING
+#define LOG_RESTYLE_VAR2(prefix_, suffix_) prefix_##suffix_
+#define LOG_RESTYLE_VAR(prefix_, suffix_) LOG_RESTYLE_VAR2(prefix_, suffix_)
+#define LOG_RESTYLE_DEPTH LOG_RESTYLE_VAR(restyle_depth_, __LINE__)
+#define LOG_RESTYLE_IF(object_, cond_, message_, ...)                         \
+  PR_BEGIN_MACRO                                                              \
+    if (object_->ShouldLogRestyle() && (cond_)) {                             \
+      nsCString line;                                                         \
+      for (int32_t LOG_RESTYLE_VAR(rs_depth_, __LINE__) = 0;                  \
+           LOG_RESTYLE_VAR(rs_depth_, __LINE__) < object_->LoggingDepth();    \
+           LOG_RESTYLE_VAR(rs_depth_, __LINE__)++) {                          \
+        line.AppendLiteral("  ");                                             \
+      }                                                                       \
+      line.AppendPrintf(message_, ##__VA_ARGS__);                             \
+      printf_stderr("%s\n", line.get());                                      \
+    }                                                                         \
+  PR_END_MACRO
+#define LOG_RESTYLE(message_, ...)                                            \
+  LOG_RESTYLE_IF(this, true, message_, ##__VA_ARGS__)
+// Beware that LOG_RESTYLE_INDENT is two statements not wrapped in a block.
+#define LOG_RESTYLE_INDENT()                                                  \
+  AutoRestore<int32_t> LOG_RESTYLE_VAR(ar_depth_, __LINE__)(LoggingDepth());  \
+  ++LoggingDepth();
+#else
+#define LOG_RESTYLE_IF(cond_, message_, ...) /* nothing */
+#define LOG_RESTYLE(message_, ...) /* nothing */
+#define LOG_RESTYLE_INDENT() /* nothing */
+#endif
+
+#endif /* mozilla_RestyleLogging_h */