Prefer arraysize() over sizeof().

chrome/browser/browser_theme_provider.cc

Index: chrome/browser/browser_theme_provider.cc
diff --git a/chrome/browser/browser_theme_provider.cc b/chrome/browser/browser_theme_provider.cc
index c3e2bb4ceac6daad2ff15e000b0ed0c1d289ebca..314b726f758b3ca4056de4ee9ddddeb57043adad 100644
--- a/chrome/browser/browser_theme_provider.cc
+++ b/chrome/browser/browser_theme_provider.cc
@@ -125,7 +125,7 @@ BrowserThemeProvider::BrowserThemeProvider()
     : rb_(ResourceBundle::GetSharedInstance()) {
   static bool initialized = false;
   if (!initialized) {
-    for (size_t i = 0; i < sizeof(kToolbarButtonIDs); ++i) {
+    for (size_t i = 0; i < arraysize(kToolbarButtonIDs); ++i) {
       button_images_[kToolbarButtonIDs[i]] = true;
     }
     frame_tints_[IDR_THEME_FRAME] = TINT_FRAME;