Changed the default Blacklist case (for no finch)

from disabled to enabled.



BUG=

Review URL: https://codereview.chromium.org/272213006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271246 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chrome_elf_init_unittest_win.cc

@@ -6,11 +6,14 @@
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/metrics/field_trial.h"
 #include "base/strings/string16.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/test_reg_util_win.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome_elf/chrome_elf_constants.h"
+#include "components/variations/entropy_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "version.h"  // NOLINT
 
@@ -54,20 +57,47 @@ class ChromeBlacklistTrialTest : public testing::Test {
   DISALLOW_COPY_AND_ASSIGN(ChromeBlacklistTrialTest);
 };
 
-
-// Ensure that the default trial deletes any existing blacklist beacons.
+// Ensure that the default trial sets up the blacklist beacons.
 TEST_F(ChromeBlacklistTrialTest, DefaultRun) {
   // Set some dummy values as beacons.
+  blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
+                                      blacklist::BLACKLIST_DISABLED);
+  blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion, L"Data");
+
+  // This setup code should result in the default group, which should have
+  // the blacklist set up.
+  InitializeChromeElf();
+
+  // Ensure the beacon values are now correct, indicating the
+  // blacklist beacon was setup.
+  ASSERT_EQ(blacklist::BLACKLIST_ENABLED, GetBlacklistState());
+  chrome::VersionInfo version_info;
+  base::string16 version(base::UTF8ToUTF16(version_info.Version()));
+  ASSERT_EQ(version, GetBlacklistVersion());
+}
+
+
+// Ensure that the blacklist is disabled for any users in the
+// "BlacklistDisabled" finch group.
+TEST_F(ChromeBlacklistTrialTest, BlacklistDisabledRun) {
+  // Set the beacons to enabled values.
   blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
                                       blacklist::BLACKLIST_ENABLED);
   blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion, L"Data");
 
-  // This setup code should result in the default group, which should remove
-  // all the beacon values.
+  // Create the field trial with the blacklist disabled group.
+  base::FieldTrialList field_trial_list(
+    new metrics::SHA1EntropyProvider("test"));
+
+  scoped_refptr<base::FieldTrial> trial(
+    base::FieldTrialList::CreateFieldTrial(
+      kBrowserBlacklistTrialName, kBrowserBlacklistTrialDisabledGroupName));
+
+  // This setup code should now delete any existing blacklist beacons.
   InitializeChromeElf();
 
-  // Ensure that invalid values are returned to indicate that the
-  // beacon values are gone.
+  // Ensure invalid values are returned to indicate that the beacon
+  // values are indeed gone.
   ASSERT_EQ(blacklist::BLACKLIST_STATE_MAX, GetBlacklistState());
   ASSERT_EQ(base::string16(), GetBlacklistVersion());
 }

chrome/browser/chrome_elf_init_win.cc

@@ -15,10 +15,10 @@
 #include "content/public/browser/browser_thread.h"
 #include "version.h"  // NOLINT
 
-namespace {
-
 const char kBrowserBlacklistTrialName[] = "BrowserBlacklist";
-const char kBrowserBlacklistTrialEnabledGroupName[] = "Enabled";
+const char kBrowserBlacklistTrialDisabledGroupName[] = "NoBlacklist";
+
+namespace {
 
 // How long to wait, in seconds, before reporting for the second (and last
 // time), what dlls were blocked from the browser process.
@@ -82,12 +82,12 @@ void ReportSuccessfulBlocks() {
 
 void InitializeChromeElf() {
   if (base::FieldTrialList::FindFullName(kBrowserBlacklistTrialName) ==
-      kBrowserBlacklistTrialEnabledGroupName) {
-    BrowserBlacklistBeaconSetup();
-  } else {
+      kBrowserBlacklistTrialDisabledGroupName) {
     // Disable the blacklist for all future runs by removing the beacon.
     base::win::RegKey blacklist_registry_key(HKEY_CURRENT_USER);
     blacklist_registry_key.DeleteKey(blacklist::kRegistryBeaconPath);
+  } else {
+    BrowserBlacklistBeaconSetup();
   }
 
   // Report all successful blacklist interceptions.

chrome/browser/chrome_elf_init_win.h

@@ -5,6 +5,10 @@
 #ifndef CHROME_BROWSER_CHROME_ELF_INIT_WIN_H_
 #define CHROME_BROWSER_CHROME_ELF_INIT_WIN_H_
 
+// Field trial name and full name for the blacklist disabled group.
+extern const char kBrowserBlacklistTrialName[];
+extern const char kBrowserBlacklistTrialDisabledGroupName[];
+
 // Prepare any initialization code for Chrome Elf's setup (This will generally
 // only affect future runs since Chrome Elf is already setup by this point).
 void InitializeChromeElf();