Remove base::DictionaryValue::HasNext.

BUG=162611
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Review URL: https://chromiumcodereview.appspot.com/13408007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193888 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/values_unittest.cc b/base/values_unittest.cc
index bad83fa..b3459ab 100644
--- a/base/values_unittest.cc
+++ b/base/values_unittest.cc
@@ -740,14 +740,14 @@
 
 TEST(ValuesTest, DictionaryIterator) {
   DictionaryValue dict;
-  for (DictionaryValue::Iterator it(dict); it.HasNext(); it.Advance()) {
+  for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
     ADD_FAILURE();
   }
 
   StringValue value1("value1");
   dict.Set("key1", value1.DeepCopy());
   bool seen1 = false;
-  for (DictionaryValue::Iterator it(dict); it.HasNext(); it.Advance()) {
+  for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
     EXPECT_FALSE(seen1);
     EXPECT_EQ("key1", it.key());
     EXPECT_TRUE(value1.Equals(&it.value()));
@@ -758,7 +758,7 @@
   StringValue value2("value2");
   dict.Set("key2", value2.DeepCopy());
   bool seen2 = seen1 = false;
-  for (DictionaryValue::Iterator it(dict); it.HasNext(); it.Advance()) {
+  for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
     if (it.key() == "key1") {
       EXPECT_FALSE(seen1);
       EXPECT_TRUE(value1.Equals(&it.value()));