Preparation to add support for side-effect free whitelist in safebrowsing.

Find LGTM's in https://codereview.chromium.org/14584002/

Review URL: https://codereview.chromium.org/14582005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@197923 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 28 insertions, 0 deletions

diff --git a/chrome/browser/prerender/prerender_field_trial.cc b/chrome/browser/prerender/prerender_field_trial.cc
index 312c9fb..b74e79a 100644
--- a/chrome/browser/prerender/prerender_field_trial.cc
+++ b/chrome/browser/prerender/prerender_field_trial.cc
@@ -33,6 +33,10 @@ const char kLoggedInPredictorTrialName[] = "PrerenderLoggedInPredictor";
 const char kLoggedInPredictorEnabledGroup[] = "Enabled";
 const char kLoggedInPredictorDisabledGroup[] = "Disabled";
 
+const char kSideEffectFreeWhitelistTrialName[] = "SideEffectFreeWhitelist";
+const char kSideEffectFreeWhitelistEnabledGroup[] = "Enabled";
+const char kSideEffectFreeWhitelistDisabledGroup[] = "Disabled";
+
 void SetupPrefetchFieldTrial() {
   chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
   if (channel == chrome::VersionInfo::CHANNEL_STABLE ||
@@ -146,6 +150,7 @@ void SetupPrerenderFieldTrial() {
 
 void ConfigureOmniboxPrerender();
 void ConfigureLoggedInPredictor();
+void ConfigureSideEffectFreeWhitelist();
 
 void ConfigurePrefetchAndPrerender(const CommandLine& command_line) {
   enum PrerenderOption {
@@ -203,6 +208,7 @@ void ConfigurePrefetchAndPrerender(const CommandLine& command_line) {
 
   ConfigureOmniboxPrerender();
   ConfigureLoggedInPredictor();
+  ConfigureSideEffectFreeWhitelist();
 }
 
 void ConfigureOmniboxPrerender() {
@@ -236,6 +242,20 @@ void ConfigureLoggedInPredictor() {
   logged_in_predictor_trial->AppendGroup(kLoggedInPredictorEnabledGroup, 100);
 }
 
+void ConfigureSideEffectFreeWhitelist() {
+  scoped_refptr<FieldTrial> side_effect_free_whitelist_trial(
+      FieldTrialList::FactoryGetFieldTrial(
+          kSideEffectFreeWhitelistTrialName, 100,
+          kSideEffectFreeWhitelistDisabledGroup, 2013, 12, 31, NULL));
+  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
+  if (channel == chrome::VersionInfo::CHANNEL_STABLE ||
+      channel == chrome::VersionInfo::CHANNEL_BETA) {
+    return;
+  }
+  side_effect_free_whitelist_trial->AppendGroup(
+      kSideEffectFreeWhitelistEnabledGroup, 100);
+}
+
 bool IsOmniboxEnabled(Profile* profile) {
   if (!profile)
     return false;
@@ -274,4 +294,9 @@ bool IsLoggedInPredictorEnabled() {
       kLoggedInPredictorEnabledGroup;
 }
 
+bool IsSideEffectFreeWhitelistEnabled() {
+  return base::FieldTrialList::FindFullName(kSideEffectFreeWhitelistTrialName)
+      == kSideEffectFreeWhitelistEnabledGroup;
+}
+
 }  // namespace prerender
diff --git a/chrome/browser/prerender/prerender_field_trial.h b/chrome/browser/prerender/prerender_field_trial.h
index 7ce9d9a..5e80a01 100644
--- a/chrome/browser/prerender/prerender_field_trial.h
+++ b/chrome/browser/prerender/prerender_field_trial.h
@@ -27,6 +27,9 @@ bool IsLocalPredictorEnabled();
 // Returns true iff the LoggedIn Predictor is enabled.
 bool IsLoggedInPredictorEnabled();
 
+// Returns true iff the side-effect free whitelist is enabled.
+bool IsSideEffectFreeWhitelistEnabled();
+
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_FIELD_TRIAL_H_