Web SQL: Replace WTF_LOG() with STORAGE_DVLOG() or SQL_DVLOG().

third_party/WebKit/Source/modules/webdatabase/StorageLog.h

Index: third_party/WebKit/Source/modules/webdatabase/StorageLog.h
diff --git a/third_party/WebKit/Source/modules/webdatabase/StorageLog.h b/third_party/WebKit/Source/modules/webdatabase/StorageLog.h
new file mode 100644
index 0000000000000000000000000000000000000000..35f91bc71f9de61f88cd26104ebab7dcf18e3612
--- /dev/null
+++ b/third_party/WebKit/Source/modules/webdatabase/StorageLog.h
@@ -0,0 +1,18 @@
+// Copyright 2016 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.
+
+#ifndef StorageLog_h
+#define StorageLog_h
+
+#include "wtf/Assertions.h"
+
+#if DCHECK_IS_ON()
+// We can see logs with |--v=N| or |--vmodule=StorageLog=N| where N is a
+// verbose level.
+#define STORAGE_DVLOG(verbose_level) !((verbose_level) <= ::logging::GetVlogLevel("StorageLog.h")) ? (void) 0 : ::logging::LogMessageVoidify() & VLOG_STREAM(verbose_level)

[michaeln, 2016/08/11 00:19:35]

I'm not so familiar with these logging macros but can this be condensed or
simplified?

#define STORAGE_DVLOG(verbose_level) \
    LAZY_STREAM(VLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))

[tkent, 2016/08/11 22:59:41]

You're right. We can use LAZY_STREAM.  We just need to avoid VLOG_IS_ON() here
to use a fixed file symbol.

  LAZY_STREAM(VLOG_STREAM(verbose_level), (verbose_level) <=
::logging::GetVlogLevel("StorageLog.h"))

+#else
+#define STORAGE_DVLOG(verbose_level) EAT_STREAM_PARAMETERS
+#endif
+
+#endif // StorageLog_h