Move preference MACs to the protected preference stores.

chrome/browser/prefs/pref_hash_filter_unittest.cc

Index: chrome/browser/prefs/pref_hash_filter_unittest.cc
diff --git a/chrome/browser/prefs/pref_hash_filter_unittest.cc b/chrome/browser/prefs/pref_hash_filter_unittest.cc
index ea63a88ee718d0b2e9757ad6ab334af7cb305ede..3b5e8218f1936d3d7892d8ec9e00e9d076fce572 100644
--- a/chrome/browser/prefs/pref_hash_filter_unittest.cc
+++ b/chrome/browser/prefs/pref_hash_filter_unittest.cc
@@ -22,6 +22,7 @@
 #include "chrome/browser/prefs/mock_validation_delegate.h"
 #include "chrome/browser/prefs/pref_hash_store.h"
 #include "chrome/browser/prefs/pref_hash_store_transaction.h"
+#include "chrome/browser/prefs/tracked/hash_store_contents.h"
 #include "chrome/common/pref_names.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -75,9 +76,8 @@ class MockPrefHashStore : public PrefHashStore {
   typedef std::pair<const void*, PrefHashFilter::PrefTrackingStrategy>
       ValuePtrStrategyPair;
 
-  MockPrefHashStore() : transactions_performed_(0),
-                        transaction_active_(false),
-                        commit_performed_(false) {}
+  MockPrefHashStore()
+      : transactions_performed_(0), transaction_active_(false) {}
 
   virtual ~MockPrefHashStore() {
     EXPECT_FALSE(transaction_active_);
@@ -98,10 +98,6 @@ class MockPrefHashStore : public PrefHashStore {
   // Returns the number of transactions that were performed.
   size_t transactions_performed() { return transactions_performed_; }
 
-  // Returns true if this MockPrefHashStore's CommitPendingWrite method was
-  // called.
-  bool commit_performed() { return commit_performed_; }
-
   // Returns the number of paths checked.
   size_t checked_paths_count() const {
     return checked_values_.size();
@@ -139,8 +135,8 @@ class MockPrefHashStore : public PrefHashStore {
   }
 
   // PrefHashStore implementation.
-  virtual scoped_ptr<PrefHashStoreTransaction> BeginTransaction() OVERRIDE;
-  virtual void CommitPendingWrite() OVERRIDE;
+  virtual scoped_ptr<PrefHashStoreTransaction> BeginTransaction(
+      scoped_ptr<HashStoreContents> storage) OVERRIDE;
 
  private:
   // A MockPrefHashStoreTransaction is handed to the caller on
@@ -169,6 +165,12 @@ class MockPrefHashStore : public PrefHashStore {
     virtual void StoreSplitHash(
         const std::string& path,
         const base::DictionaryValue* split_value) OVERRIDE;
+    virtual bool HasHash(const std::string& path) const OVERRIDE;
+    virtual void ImportHash(const std::string& path,
+                            const base::Value* hash) OVERRIDE;
+    virtual void ClearHash(const std::string& path) OVERRIDE;
+    virtual bool IsSuperMACValid() const OVERRIDE;
+    virtual bool StampSuperMac() OVERRIDE;
 
    private:
     MockPrefHashStore* outer_;
@@ -205,9 +207,6 @@ class MockPrefHashStore : public PrefHashStore {
   // active at a time).
   bool transaction_active_;
 
-  // Whether CommitPendingWrite() was called.
-  bool commit_performed_;
-
   DISALLOW_COPY_AND_ASSIGN(MockPrefHashStore);
 };
 
@@ -229,17 +228,13 @@ void MockPrefHashStore::SetInvalidKeysResult(
   invalid_keys_results_.insert(std::make_pair(path, invalid_keys_result));
 }
 
-scoped_ptr<PrefHashStoreTransaction> MockPrefHashStore::BeginTransaction() {
+scoped_ptr<PrefHashStoreTransaction> MockPrefHashStore::BeginTransaction(
+    scoped_ptr<HashStoreContents> storage) {
   EXPECT_FALSE(transaction_active_);
   return scoped_ptr<PrefHashStoreTransaction>(
       new MockPrefHashStoreTransaction(this));
 }
 
-void MockPrefHashStore::CommitPendingWrite() {
-  EXPECT_FALSE(commit_performed_);
-  commit_performed_ = true;
-}
-
 PrefHashStoreTransaction::ValueState MockPrefHashStore::RecordCheckValue(
     const std::string& path,
     const base::Value* value,
@@ -304,6 +299,36 @@ void MockPrefHashStore::MockPrefHashStoreTransaction::StoreSplitHash(
                           PrefHashFilter::TRACKING_STRATEGY_SPLIT);
 }
 
+bool MockPrefHashStore::MockPrefHashStoreTransaction::HasHash(
+    const std::string& path) const  {
+  ADD_FAILURE() << "Unexpected call.";
+  return false;
+}
+
+void MockPrefHashStore::MockPrefHashStoreTransaction::ImportHash(
+    const std::string& path,
+    const base::Value* hash)  {
+  ADD_FAILURE() << "Unexpected call.";
+}
+
+void MockPrefHashStore::MockPrefHashStoreTransaction::ClearHash(
+    const std::string& path)  {
+  ADD_FAILURE() << "Unexpected call.";
+}
+
+bool MockPrefHashStore::MockPrefHashStoreTransaction::IsSuperMACValid() const {
+  // TODO(erikwright): Test that the result of this method is reported to
+  // Settings.HashesDictionaryTrusted.
+  return false;
+}
+
+bool MockPrefHashStore::MockPrefHashStoreTransaction::StampSuperMac() {
+  // TODO(erikwright): Test that, when there are no other changes to the store,
+  // the result of this method determines the value of |prefs_altered| in the
+  // |post_filter_on_load_callback| invocation.
+  return false;
+}
+
 std::vector<PrefHashFilter::TrackedPreferenceMetadata> GetConfiguration(
     PrefHashFilter::EnforcementLevel max_enforcement_level) {
   std::vector<PrefHashFilter::TrackedPreferenceMetadata> configuration(
@@ -343,7 +368,8 @@ class PrefHashFilterTest
         new PrefHashFilter(temp_mock_pref_hash_store.PassAs<PrefHashStore>(),
                            configuration,
                            &mock_validation_delegate_,
-                           arraysize(kTestTrackedPrefs)));
+                           arraysize(kTestTrackedPrefs),
+                           true));
   }
 
   bool RecordedReset() {
@@ -396,7 +422,6 @@ TEST_P(PrefHashFilterTest, EmptyAndUnchanged) {
   }
   ASSERT_EQ(1u, mock_pref_hash_store_->transactions_performed());
   ASSERT_FALSE(RecordedReset());
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 
   // Delegate saw all paths, and all unchanged.
   ASSERT_EQ(arraysize(kTestTrackedPrefs),
@@ -426,7 +451,6 @@ TEST_P(PrefHashFilterTest, FilterTrackedPrefUpdate) {
 
   ASSERT_EQ(1u, mock_pref_hash_store_->transactions_performed());
   ASSERT_FALSE(RecordedReset());
-  EXPECT_TRUE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, FilterSplitPrefUpdate) {
@@ -451,7 +475,6 @@ TEST_P(PrefHashFilterTest, FilterSplitPrefUpdate) {
 
   ASSERT_EQ(1u, mock_pref_hash_store_->transactions_performed());
   ASSERT_FALSE(RecordedReset());
-  EXPECT_TRUE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, FilterUntrackedPrefUpdate) {
@@ -518,7 +541,6 @@ TEST_P(PrefHashFilterTest, MultiplePrefsFilterSerializeData) {
        mock_pref_hash_store_->stored_value(kSplitPref);
   ASSERT_EQ(dict_value, stored_value_split.first);
   ASSERT_EQ(PrefHashFilter::TRACKING_STRATEGY_SPLIT, stored_value_split.second);
-  EXPECT_TRUE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, EmptyAndUnknown) {
@@ -546,7 +568,6 @@ TEST_P(PrefHashFilterTest, EmptyAndUnknown) {
   ASSERT_EQ(NULL, stored_split_value.first);
   ASSERT_EQ(PrefHashFilter::TRACKING_STRATEGY_SPLIT,
             stored_split_value.second);
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 
   // Delegate saw all prefs, two of which had the expected value_state.
   ASSERT_EQ(arraysize(kTestTrackedPrefs),
@@ -639,7 +660,6 @@ TEST_P(PrefHashFilterTest, InitialValueUnknown) {
 
     ASSERT_FALSE(RecordedReset());
   }
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, InitialValueTrustedUnknown) {
@@ -693,7 +713,6 @@ TEST_P(PrefHashFilterTest, InitialValueTrustedUnknown) {
   ASSERT_EQ(dict_value, stored_split_value.first);
   ASSERT_EQ(PrefHashFilter::TRACKING_STRATEGY_SPLIT,
             stored_split_value.second);
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, InitialValueChanged) {
@@ -773,7 +792,6 @@ TEST_P(PrefHashFilterTest, InitialValueChanged) {
 
     ASSERT_FALSE(RecordedReset());
   }
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, EmptyCleared) {
@@ -814,7 +832,6 @@ TEST_P(PrefHashFilterTest, EmptyCleared) {
   ASSERT_EQ(NULL, stored_split_value.first);
   ASSERT_EQ(PrefHashFilter::TRACKING_STRATEGY_SPLIT,
             stored_split_value.second);
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, InitialValueMigrated) {
@@ -867,7 +884,6 @@ TEST_P(PrefHashFilterTest, InitialValueMigrated) {
 
     ASSERT_FALSE(RecordedReset());
   }
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, InitialValueUnchangedLegacyId) {
@@ -927,7 +943,6 @@ TEST_P(PrefHashFilterTest, InitialValueUnchangedLegacyId) {
   ASSERT_EQ(dict_value, stored_split_value.first);
 
   ASSERT_FALSE(RecordedReset());
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 TEST_P(PrefHashFilterTest, DontResetReportOnly) {
@@ -1005,7 +1020,6 @@ TEST_P(PrefHashFilterTest, DontResetReportOnly) {
 
     ASSERT_FALSE(RecordedReset());
   }
-  EXPECT_FALSE(mock_pref_hash_store_->commit_performed());
 }
 
 INSTANTIATE_TEST_CASE_P(