Make proxy settings one atomic dictionary in the PrefStores such that modifications are atomic.

chrome/browser/prefs/command_line_pref_store_unittest.cc

Index: chrome/browser/prefs/command_line_pref_store_unittest.cc
diff --git a/chrome/browser/prefs/command_line_pref_store_unittest.cc b/chrome/browser/prefs/command_line_pref_store_unittest.cc
index 2518ff9595377056f2e101e64f7fc0aadb6f3ba1..02d59e2e5ba5bd20684f7696c6776ceceb14c649 100644
--- a/chrome/browser/prefs/command_line_pref_store_unittest.cc
+++ b/chrome/browser/prefs/command_line_pref_store_unittest.cc
@@ -26,10 +26,14 @@ class TestCommandLinePrefStore : public CommandLinePrefStore {
     return ValidateProxySwitches();
   }
 
-  void VerifyIntPref(const std::string& path, int expected_value) {
-    Value* actual = NULL;
-    ASSERT_EQ(PrefStore::READ_OK, GetValue(path, &actual));
-    EXPECT_TRUE(FundamentalValue(expected_value).Equals(actual));
+  void VerifyProxyMode(ProxyPrefs::ProxyMode expected_mode) {
+    Value* value = NULL;
+    ASSERT_EQ(PrefStore::READ_OK, GetValue(prefs::kProxy, &value));
+    ASSERT_EQ(Value::TYPE_DICTIONARY, value->GetType());
+    ProxyPrefsDictionary dict(static_cast<DictionaryValue*>(value));
+    ProxyPrefs::ProxyMode actual_mode;
+    ASSERT_TRUE(dict.GetMode(&actual_mode));
+    EXPECT_EQ(expected_mode, actual_mode);
   }
 };
 
@@ -59,7 +63,7 @@ TEST(CommandLinePrefStoreTest, SimpleBooleanPref) {
   scoped_refptr<TestCommandLinePrefStore> store =
       new TestCommandLinePrefStore(&cl);
 
-  store->VerifyIntPref(prefs::kProxyMode, ProxyPrefs::MODE_DIRECT);
+  store->VerifyProxyMode(ProxyPrefs::MODE_DIRECT);
 }
 
 // Tests a command line with no recognized prefs.
@@ -78,7 +82,6 @@ TEST(CommandLinePrefStoreTest, NoPrefs) {
 TEST(CommandLinePrefStoreTest, MultipleSwitches) {
   CommandLine cl(CommandLine::NO_PROGRAM);
   cl.AppendSwitch(unknown_string);
-  cl.AppendSwitch(switches::kProxyAutoDetect);
   cl.AppendSwitchASCII(switches::kProxyServer, "proxy");
   cl.AppendSwitchASCII(switches::kProxyBypassList, "list");
   cl.AppendSwitchASCII(unknown_bool, "a value");
@@ -87,16 +90,21 @@ TEST(CommandLinePrefStoreTest, MultipleSwitches) {
 
   Value* actual = NULL;
   EXPECT_EQ(PrefStore::READ_NO_VALUE, store->GetValue(unknown_bool, &actual));
-  store->VerifyIntPref(prefs::kProxyMode, ProxyPrefs::MODE_AUTO_DETECT);
-
   EXPECT_EQ(PrefStore::READ_NO_VALUE, store->GetValue(unknown_string, &actual));
+
+  store->VerifyProxyMode(ProxyPrefs::MODE_FIXED_SERVERS);
+
+  Value* value = NULL;
+  ASSERT_EQ(PrefStore::READ_OK, store->GetValue(prefs::kProxy, &value));
+  ASSERT_EQ(Value::TYPE_DICTIONARY, value->GetType());
+  ProxyPrefsDictionary dict(static_cast<DictionaryValue*>(value));
+
   std::string string_result = "";
-  ASSERT_EQ(PrefStore::READ_OK, store->GetValue(prefs::kProxyServer, &actual));
-  EXPECT_TRUE(actual->GetAsString(&string_result));
+
+  ASSERT_TRUE(dict.GetProxyServer(&string_result));
   EXPECT_EQ("proxy", string_result);
-  ASSERT_EQ(PrefStore::READ_OK,
-            store->GetValue(prefs::kProxyBypassList, &actual));
-  EXPECT_TRUE(actual->GetAsString(&string_result));
+
+  ASSERT_TRUE(dict.GetBypassList(&string_result));
   EXPECT_EQ("list", string_result);
 }
 
@@ -138,11 +146,11 @@ TEST(CommandLinePrefStoreTest, ManualProxyModeInference) {
   cl1.AppendSwitchASCII(switches::kProxyServer, "proxy");
   scoped_refptr<TestCommandLinePrefStore> store1 =
       new TestCommandLinePrefStore(&cl1);
-  store1->VerifyIntPref(prefs::kProxyMode, ProxyPrefs::MODE_FIXED_SERVERS);
+  store1->VerifyProxyMode(ProxyPrefs::MODE_FIXED_SERVERS);
 
   CommandLine cl2(CommandLine::NO_PROGRAM);
   cl2.AppendSwitchASCII(switches::kProxyPacUrl, "proxy");
   scoped_refptr<TestCommandLinePrefStore> store2 =
         new TestCommandLinePrefStore(&cl2);
-  store2->VerifyIntPref(prefs::kProxyMode, ProxyPrefs::MODE_PAC_SCRIPT);
+  store2->VerifyProxyMode(ProxyPrefs::MODE_PAC_SCRIPT);
 }