test_runner: Migrate MockSpellCheck to Chromium C++ style.

content/shell/renderer/test_runner/event_sender.cc

Index: content/shell/renderer/test_runner/event_sender.cc
diff --git a/content/shell/renderer/test_runner/event_sender.cc b/content/shell/renderer/test_runner/event_sender.cc
index 2ccc4fd64dbe10fcd5d821879d80bec076386bf9..8791a2f8c1dfb26b4a89dd7a1d54577c6a2faf3d 100644
--- a/content/shell/renderer/test_runner/event_sender.cc
+++ b/content/shell/renderer/test_runner/event_sender.cc
@@ -8,9 +8,9 @@
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "content/public/common/page_zoom.h"
-#include "content/shell/renderer/test_runner/MockSpellCheck.h"
 #include "content/shell/renderer/test_runner/TestInterfaces.h"
 #include "content/shell/renderer/test_runner/WebTestDelegate.h"
+#include "content/shell/renderer/test_runner/mock_spell_check.h"
 #include "content/shell/renderer/test_runner/web_test_proxy.h"
 #include "gin/handle.h"
 #include "gin/object_template_builder.h"
@@ -177,8 +177,8 @@ std::vector<std::string> MakeMenuItemStringsFor(
       strings.push_back(*item);
     }
     WebVector<WebString> suggestions;
-    MockSpellCheck::fillSuggestionList(
-        context_menu->misspelledWord, &suggestions);
+    MockSpellCheck::FillSuggestionList(context_menu->misspelledWord,
+                                       &suggestions);
     for (size_t i = 0; i < suggestions.size(); ++i) {
       strings.push_back(suggestions[i].utf8());
     }