Implemented VLOG() et al.

Implemented VLOG(), VLOG_IF(), VLOG_IS_ON().  Added --v and --vmodule
switches.

Changed some spammy sync-related logs to use VLOG.

BUG=56965
TEST=New unittests

Review URL: http://codereview.chromium.org/3448028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60976 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/base/base_switches.cc b/base/base_switches.cc
index b5e145f..49c6487 100644
--- a/base/base_switches.cc
+++ b/base/base_switches.cc
@@ -31,6 +31,16 @@ const char kNoMessageBox[]                  = "no-message-box";
 // to the test framework that the current process is a child process.
 const char kTestChildProcess[]              = "test-child-process";
 
+// Gives the default maximal active V-logging level; 0 is the default.
+// Normally positive values are used for V-logging levels.
+const char kV[]                             = "v";
+
+// Gives the per-module maximal V-logging levels to override the value
+// given by --v.  E.g. "my_module=2,foo*=3" would change the logging
+// level for all code in source files "my_module.*" and "foo*.*"
+// ("-inl" suffixes are also disregarded for this matching).
+const char kVModule[]                       = "vmodule";
+
 // Will wait for 60 seconds for a debugger to come to attach to the process.
 const char kWaitForDebugger[]               = "wait-for-debugger";