Move most visited item state info from InstantController to InstantService.

chrome/common/instant_restricted_id_cache_unittest.cc

Index: chrome/common/instant_restricted_id_cache_unittest.cc
diff --git a/chrome/common/instant_restricted_id_cache_unittest.cc b/chrome/common/instant_restricted_id_cache_unittest.cc
index e7e97be5fc6e823e51a232f9bb71ae1d37a7f76b..92a6f10b9d28d80d4b458fd98d677e3902a03d57 100644
--- a/chrome/common/instant_restricted_id_cache_unittest.cc
+++ b/chrome/common/instant_restricted_id_cache_unittest.cc
@@ -392,3 +392,32 @@ TEST_F(InstantRestrictedIDCacheTest, AddEmptySet) {
   cache.GetCurrentItems(&output);
   EXPECT_TRUE(output.empty());
 }
+
+TEST_F(InstantRestrictedIDCacheTest, AddItemsWithRestrictedID) {
+  InstantRestrictedIDCache<TestData> cache(29);
+  EXPECT_EQ(0u, cache.cache_.size());
+  EXPECT_EQ(0, cache.last_restricted_id_);
+
+  std::vector<ItemIDPair> input1;
+  input1.push_back(std::make_pair(10, TestData("A")));
+  input1.push_back(std::make_pair(11, TestData("B")));
+  input1.push_back(std::make_pair(12, TestData("C")));
+  cache.AddItemsWithRestrictedID(input1);
+  EXPECT_EQ(3u, cache.cache_.size());
+  EXPECT_EQ(12, cache.last_restricted_id_);
+  EXPECT_EQ(10, cache.last_add_start_->first);
+
+  std::vector<ItemIDPair> output;
+  cache.GetCurrentItems(&output);
+  EXPECT_EQ(3u, output.size());
+
+  // Add the same items again.
+  cache.AddItemsWithRestrictedID(input1);
+
+  // Make sure |cache.last_add_start_| is still valid.
+  cache.GetCurrentItems(&output);
+  EXPECT_EQ(3u, output.size());
+  EXPECT_EQ(3u, cache.cache_.size());
+  EXPECT_EQ(12, cache.last_restricted_id_);
+  EXPECT_EQ(10, cache.last_add_start_->first);
+}