Utilize ProfileInfoCache to support data type counts in profile deletion flow

chrome/browser/profiles/profile_info_cache.cc

Index: chrome/browser/profiles/profile_info_cache.cc
diff --git a/chrome/browser/profiles/profile_info_cache.cc b/chrome/browser/profiles/profile_info_cache.cc
index fd71e1779060269b5b2252fde7f7cb57e7becae7..dc0ad67f8f4fb8290498edc7ca2adda2b59de457 100644
--- a/chrome/browser/profiles/profile_info_cache.cc
+++ b/chrome/browser/profiles/profile_info_cache.cc
@@ -60,6 +60,7 @@ const char kSupervisedUserId[] = "managed_user_id";
 const char kProfileIsEphemeral[] = "is_ephemeral";
 const char kActiveTimeKey[] = "active_time";
 const char kIsAuthErrorKey[] = "is_auth_error";
+const char kStatisticsKey[] = "statistics";
 
 // First eight are generic icons, which use IDS_NUMBERED_PROFILE_NAME.
 const int kDefaultNames[] = {
@@ -499,6 +500,50 @@ size_t ProfileInfoCache::GetAvatarIconIndexOfProfileAtIndex(size_t index)
   return icon_index;
 }
 
+int ProfileInfoCache::GetStatisticOfProfileAtIndex(size_t index,
+    const std::string& category) const {
+  const base::DictionaryValue* statistics;
+  if (!GetInfoForProfileAtIndex(index)->GetDictionaryWithoutPathExpansion(
+      kStatisticsKey, &statistics))
+    return 0;
+
+  int out_value;
+  return statistics->GetIntegerWithoutPathExpansion(category, &out_value) ?
+         out_value : 0;
+}
+
+std::map<std::string, int> ProfileInfoCache::GetAllStatisticsOfProfileAtIndex(
+    size_t index) const {
+  const base::DictionaryValue* statistics;
+  std::map<std::string, int> out_value;
+
+  if (!GetInfoForProfileAtIndex(index)->GetDictionaryWithoutPathExpansion(
+      kStatisticsKey, &statistics))
+    return out_value;  // No statistics are set, so return an empty map.
+
+  for (base::DictionaryValue::Iterator it(*statistics); !it.IsAtEnd();
+       it.Advance()) {
+    int value;
+    if (it.value().GetAsInteger(&value)) {
+      out_value[it.key()] = value;
+    }
+  }
+  return out_value;
+}
+
+scoped_ptr<base::DictionaryValue>
+    ProfileInfoCache::GetAllStatisticsOfProfileAtIndexAsDictionaryValue(
+    size_t index) const {
+  const base::DictionaryValue* statistics;
+
+  if (!GetInfoForProfileAtIndex(index)->GetDictionaryWithoutPathExpansion(
+      kStatisticsKey, &statistics))
+    // No statistics are set, so return an empty map.
+    return make_scoped_ptr(new base::DictionaryValue()).Pass();
+
+  return statistics->CreateDeepCopy().Pass();
+}
+
 void ProfileInfoCache::SetProfileActiveTimeAtIndex(size_t index) {
   if (base::Time::Now() - GetProfileActiveTimeAtIndex(index) <
       base::TimeDelta::FromHours(1)) {
@@ -909,6 +954,21 @@ size_t ProfileInfoCache::ChooseAvatarIconIndexForNewProfile() const {
   return 0;
 }
 
+void ProfileInfoCache::SetStatisticOfProfileAtIndex(size_t index,
+    const std::string& category, int value) {
+  scoped_ptr<base::DictionaryValue> info(
+      GetInfoForProfileAtIndex(index)->DeepCopy());
+  base::DictionaryValue* statistics;
+  if (!info->GetDictionaryWithoutPathExpansion(kStatisticsKey, &statistics)) {
+    statistics = new base::DictionaryValue();
+    info->SetWithoutPathExpansion(kStatisticsKey, make_scoped_ptr(statistics));
+  }
+
+  statistics->SetIntegerWithoutPathExpansion(category, value);
+  // This takes ownership of |info|.
+  SetInfoForProfileAtIndex(index, info.release());
+}
+
 const base::FilePath& ProfileInfoCache::GetUserDataDir() const {
   return user_data_dir_;
 }