Remove explicit keyword from multi-argument constructors

chrome/browser/ui/window_sizer.cc

Index: chrome/browser/ui/window_sizer.cc
diff --git a/chrome/browser/ui/window_sizer.cc b/chrome/browser/ui/window_sizer.cc
index 24a19cb349cec01f85691c008c0fa5f8c2f57d77..bcd321caf64d6f9d003ff310a905007a465cb21f 100644
--- a/chrome/browser/ui/window_sizer.cc
+++ b/chrome/browser/ui/window_sizer.cc
@@ -17,9 +17,8 @@
 // and persistent state from the browser window and the user's profile.
 class DefaultStateProvider : public WindowSizer::StateProvider {
  public:
-  explicit DefaultStateProvider(const std::string& app_name,
-      const Browser* browser) : app_name_(app_name),
-                                browser_(browser) {
+  DefaultStateProvider(const std::string& app_name, const Browser* browser)
+      : app_name_(app_name), browser_(browser) {
   }
 
   // Overridden from WindowSizer::StateProvider: