clang/win: Let remaining chromium_code targets build with -Wextra.

chrome_elf/elf_imports_unittest.cc

Index: chrome_elf/elf_imports_unittest.cc
diff --git a/chrome_elf/elf_imports_unittest.cc b/chrome_elf/elf_imports_unittest.cc
index 87a1f596707238023671c83593cd08e5eb7d58da..806ed790a043a34dbd00d9b4783174241e984880 100644
--- a/chrome_elf/elf_imports_unittest.cc
+++ b/chrome_elf/elf_imports_unittest.cc
@@ -91,8 +91,8 @@ TEST_F(ELFImportsTest, ChromeElfSanityCheck) {
   // Make sure all of ELF's imports are in the valid imports list.
   for (const std::string& import : elf_imports) {
     bool match = false;
-    for (int i = 0; i < arraysize(kValidFilePatterns); ++i) {
-      if (base::MatchPattern(import, kValidFilePatterns[i])) {
+    for (const char* kValidFilePattern : kValidFilePatterns) {
+      if (base::MatchPattern(import, kValidFilePattern)) {
         match = true;
         break;
       }