Omnibox: Make Keyword Provide More Generous with Matching

components/omnibox/browser/omnibox_field_trial.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/omnibox/browser/omnibox_field_trial.h"
 
 #include <cmath>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 422 matching lines @@
       kBundledExperimentFieldTrialName,
       kHQPAlsoDoHUPLikeScoringRule) == "true";
 }
 
 bool OmniboxFieldTrial::PreventUWYTDefaultForNonURLInputs() {
   return variations::GetVariationParamValue(
       kBundledExperimentFieldTrialName,
       kPreventUWYTDefaultForNonURLInputsRule) == "true";
 }
 
+bool OmniboxFieldTrial::KeywordRequiresRegistry() {
+  const std::string& value = variations::GetVariationParamValue(
+      kBundledExperimentFieldTrialName,
+      kKeywordRequiresRegistryRule);
+  return value.empty() || (value == "true");
+}
+
+bool OmniboxFieldTrial::KeywordRequiresPrefixBeforeDomain() {
+  const std::string& value = variations::GetVariationParamValue(
+      kBundledExperimentFieldTrialName,
+      kKeywordRequiresPrefixBeforeDomainRule);
+  return value.empty() || (value == "true");
+}
+
+int OmniboxFieldTrial::KeywordScoreForNearlyCompleteMatch() {
+  std::string value_str = variations::GetVariationParamValue(
+      kBundledExperimentFieldTrialName,
+      kKeywordScoreForNearlyCompleteMatchRule);
+  if (value_str.empty())
+    return -1;
+  // This is a best-effort conversion; we trust the hand-crafted parameters
+  // downloaded from the server to be perfect.  There's no need for handle
+  // errors smartly.
+  int value;
+  return base::StringToInt(value_str, &value);
+  return value;
+}
+
+
 const char OmniboxFieldTrial::kBundledExperimentFieldTrialName[] =
     "OmniboxBundledExperimentV1";
 const char OmniboxFieldTrial::kDisableProvidersRule[] = "DisableProviders";
 const char OmniboxFieldTrial::kShortcutsScoringMaxRelevanceRule[] =
     "ShortcutsScoringMaxRelevance";
 const char OmniboxFieldTrial::kSearchHistoryRule[] = "SearchHistory";
 const char OmniboxFieldTrial::kDemoteByTypeRule[] = "DemoteByType";
 const char OmniboxFieldTrial::kHQPBookmarkValueRule[] =
     "HQPBookmarkValue";
 const char OmniboxFieldTrial::kHQPAllowMatchInTLDRule[] = "HQPAllowMatchInTLD";
 const char OmniboxFieldTrial::kHQPAllowMatchInSchemeRule[] =
     "HQPAllowMatchInScheme";
 const char OmniboxFieldTrial::kZeroSuggestRule[] = "ZeroSuggest";
 const char OmniboxFieldTrial::kZeroSuggestVariantRule[] = "ZeroSuggestVariant";
 const char OmniboxFieldTrial::kSuggestVariantRule[] = "SuggestVariant";
 const char OmniboxFieldTrial::kDisableResultsCachingRule[] =
     "DisableResultsCaching";
 const char
 OmniboxFieldTrial::kMeasureSuggestPollingDelayFromLastKeystrokeRule[] =
     "MeasureSuggestPollingDelayFromLastKeystroke";
 const char OmniboxFieldTrial::kSuggestPollingDelayMsRule[] =
     "SuggestPollingDelayMs";
 const char OmniboxFieldTrial::kHQPFixFrequencyScoringBugsRule[] =
     "HQPFixFrequencyScoringBugs";
 const char OmniboxFieldTrial::kHQPNumTitleWordsRule[] = "HQPNumTitleWords";
 const char OmniboxFieldTrial::kHQPAlsoDoHUPLikeScoringRule[] =
     "HQPAlsoDoHUPLikeScoring";
 const char OmniboxFieldTrial::kPreventUWYTDefaultForNonURLInputsRule[] =
     "PreventUWYTDefaultForNonURLInputs";
+const char OmniboxFieldTrial::kKeywordRequiresRegistryRule[] =
+    "KeywordRequiresRegistry";
+const char OmniboxFieldTrial::kKeywordRequiresPrefixBeforeDomainRule[] =
+    "KeywordRequiresPrefixBeforeDomain";
+const char OmniboxFieldTrial::kKeywordScoreForNearlyCompleteMatchRule[] =
+    "KeywordScoreForNearlyCompleteMatch";
 
 const char OmniboxFieldTrial::kHUPNewScoringEnabledParam[] =
     "HUPExperimentalScoringEnabled";
 const char OmniboxFieldTrial::kHUPNewScoringTypedCountRelevanceCapParam[] =
     "TypedCountRelevanceCap";
 const char OmniboxFieldTrial::kHUPNewScoringTypedCountHalfLifeTimeParam[] =
     "TypedCountHalfLifeTime";
 const char OmniboxFieldTrial::kHUPNewScoringTypedCountScoreBucketsParam[] =
     "TypedCountScoreBuckets";
 const char OmniboxFieldTrial::kHUPNewScoringTypedCountUseDecayFactorParam[] =
@@ skipping 73 matching lines @@
   if (it != params.end())
     return it->second;
   // Fall back to the global instant extended context.
   it = params.find(rule + ":" + page_classification_str + ":*");
   if (it != params.end())
     return it->second;
   // Look up rule in the global context.
   it = params.find(rule + ":*:*");
   return (it != params.end()) ? it->second : std::string();
 }