Add new stats to local predictor

chrome/browser/prerender/prerender_local_predictor.cc

 // Copyright (c) 2012 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 "chrome/browser/prerender/prerender_local_predictor.h"
 
 #include <ctype.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 126 matching lines @@
 base::Time GetCurrentTime() {
   return base::Time::Now();
 }
 
 bool StrCaseStr(std::string haystack, std::string needle) {
   std::transform(haystack.begin(), haystack.end(), haystack.begin(), ::tolower);
   std::transform(needle.begin(), needle.end(), needle.begin(), ::tolower);
   return haystack.find(needle) != std::string::npos;
 }
 
+bool IsExtendedRootURL(const GURL& url) {
+  const std::string& path = url.path();
+  return path == "/index.html" || path == "/home.html" ||

[Shishir, 2012/12/01 01:33:23]

Maybe add this to a static set and lookup.

+      path == "/main.html" ||
+      path == "/index.htm" || path == "/home.htm" || path == "/main.htm" ||
+      path == "/index.php" || path == "/home.php" || path == "/main.php" ||
+      path == "/index.asp" || path == "/home.asp" || path == "/main.asp" ||
+      path == "/index.py" || path == "/home.py" || path == "/main.py" ||
+      path == "/index.pl" || path == "/home.pl" || path == "/main.pl";
+}
+
 bool IsRootPageURL(const GURL& url) {
-  return (url.path() == "/" || url.path() == "") && (!url.has_query()) &&
-    (!url.has_ref());
+  return (url.path() == "/" || url.path() == "" || IsExtendedRootURL(url)) &&
+      (!url.has_query()) && (!url.has_ref());
 }
 
 int64 URLHashToInt64(const unsigned char* data) {
   COMPILE_ASSERT(kURLHashSize < sizeof(int64), url_hash_must_fit_in_int64);
   int64 value = 0;
   memcpy(&value, data, kURLHashSize);
   return value;
 }
 
 int64 GetInt64URLHashForURL(const GURL& url) {
@@ skipping 217 matching lines @@
     }
   }
 
   if (url_whitelist_.count(GetInt64URLHashForURL(url)) > 0) {
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_ON_WHITELIST);
     if (IsRootPageURL(url))
       RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_ON_WHITELIST_ROOT_PAGE);
   }
   if (IsRootPageURL(url))
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_ROOT_PAGE);
+  if (IsExtendedRootURL(url))
+    RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_EXTENDED_ROOT_PAGE);
+  if (IsRootPageURL(url) && url.SchemeIs("http"))
+    RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_ROOT_PAGE_HTTP);
   if (url.SchemeIs("http"))
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_IS_HTTP);
   if (url.has_query())
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_HAS_QUERY_STRING);
   if (StrCaseStr(url.spec().c_str(), "logout") ||
       StrCaseStr(url.spec().c_str(), "signout"))
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_CONTAINS_LOGOUT);
   if (StrCaseStr(url.spec().c_str(), "login") ||
       StrCaseStr(url.spec().c_str(), "signin"))
     RecordEvent(EVENT_PRERENDER_URL_LOOKUP_RESULT_CONTAINS_LOGIN);
@@ skipping 95 matching lines @@
 bool PrerenderLocalPredictor::ShouldReplaceCurrentPrerender(
     double priority) const {
   base::TimeDelta max_age =
       base::TimeDelta::FromMilliseconds(kMaxLocalPredictionTimeMs);
   return (!current_prerender_.get()) ||
     current_prerender_->priority < priority ||
     current_prerender_->start_time < GetCurrentTime() - max_age;
 }
 
 }  // namespace prerender