Cleanup: Convert const char* kFoo to const char kFoo[].

content/browser/accessibility/accessibility_tree_formatter.cc

Index: content/browser/accessibility/accessibility_tree_formatter.cc
diff --git a/content/browser/accessibility/accessibility_tree_formatter.cc b/content/browser/accessibility/accessibility_tree_formatter.cc
index 70a00f4f5cfb60bc413ef2520028f23fdb43ec6c..7968c71b285237ed0a823f9c6057242840b70559 100644
--- a/content/browser/accessibility/accessibility_tree_formatter.cc
+++ b/content/browser/accessibility/accessibility_tree_formatter.cc
@@ -19,13 +19,16 @@
 #include "content/public/browser/web_contents.h"
 
 namespace content {
+
 namespace {
+
 const char kIndentSymbol = '+';
 const int kIndentSymbolCount = 2;
-const char* kSkipString = "@NO_DUMP";
-const char* kSkipChildren = "@NO_CHILDREN_DUMP";
-const char* kChildrenDictAttr = "children";
-}
+const char kSkipString[] = "@NO_DUMP";
+const char kSkipChildren[] = "@NO_CHILDREN_DUMP";
+const char kChildrenDictAttr[] = "children";
+
+}  // namespace
 
 AccessibilityTreeFormatter::AccessibilityTreeFormatter()
     : show_ids_(false) {