support multiple log message handlers in base/logging.h

chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc

Index: chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc b/chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc
index 0e019c935b099b00359b0daccabdb2f02aa572db..3e18263f44cb0d9f95f09dd8e1d68f98151619e5 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc
@@ -28,11 +28,10 @@ namespace {
 static bool had_console_errors = false;
 
 bool HandleMessage(int severity,
-                   const char* file,
+                   const std::string& file,
                    int line,
-                   size_t message_start,
                    const std::string& str) {
-  if (severity == logging::LOG_ERROR && file && file == std::string("CONSOLE"))
+  if (severity == logging::LOG_ERROR && file == std::string("CONSOLE"))
     had_console_errors = true;
   return false;
 }
@@ -42,10 +41,12 @@ bool HandleMessage(int severity,
 class NewTabUIBrowserTest : public InProcessBrowserTest {
  public:
   NewTabUIBrowserTest() {
-    logging::SetLogMessageHandler(&HandleMessage);
+    logging::AddLogMessageHandler(&HandleMessage);
   }
 
-  ~NewTabUIBrowserTest() override { logging::SetLogMessageHandler(NULL); }
+  ~NewTabUIBrowserTest() override {
+    logging::RemoveLogMessageHandler(&HandleMessage);
+  }
 
   void TearDown() override {
     InProcessBrowserTest::TearDown();