Issue 501916 : Add data type counts to profile deletion flow

components/history/core/browser/visit_database.cc

Index: components/history/core/browser/visit_database.cc
diff --git a/components/history/core/browser/visit_database.cc b/components/history/core/browser/visit_database.cc
index 6d5819c36621ae11058b478811aaca64af2736e8..85cae3819bf976cb6dbe5b782c1dc0fd085a88ab 100644
--- a/components/history/core/browser/visit_database.cc
+++ b/components/history/core/browser/visit_database.cc
@@ -536,6 +536,29 @@ bool VisitDatabase::GetVisibleVisitCountToHost(const GURL& url,
   return true;
 }
 
+int VisitDatabase::GetCountOfURLsWithVisibleVisit() {

[lwchkg, 2015/08/11 15:54:51]

Please discuss the naming of this function. It should count in the same way in
chrome://history/ , with dates set to infinity.

I'd suggest GetHistoryCount because it is difficult to write down the URL-days
concept in the function name. I'll update the function names and related
comments once the names are decided.

Mike and James: is the above proposed name okay? If not please suggest some
other names.

[lwchkg, 2015/08/12 17:47:30]

@sdefrense and @sky: Please check the code here. Thanks.

[Mike Lerman, 2015/08/13 14:56:33]

I think GetCountHistoryEntries extends well to this function?

+  sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
+      "SELECT COUNT(*) FROM ("
+      "SELECT DISTINCT url, "
+      // Convert unit of timestamp from the numbers of microseconds since
+      // Windows Epoch to the number of seconds from Unix Epoch.
+      "DATE(visit_time/1000000-11644473600, 'localtime', 'unixepoch') "
+      "FROM visits "
+      "WHERE (transition & ?) != 0 "  // CHAIN_END
+      "AND (transition & ?) NOT IN (?, ?, ?)"  // NO SUBFRAME or
+                                               // KEYWORD_GENERATED
+      ")"));
+
+  statement.BindInt(0, ui::PAGE_TRANSITION_CHAIN_END);
+  statement.BindInt(1, ui::PAGE_TRANSITION_CORE_MASK);
+  statement.BindInt(2, ui::PAGE_TRANSITION_AUTO_SUBFRAME);
+  statement.BindInt(3, ui::PAGE_TRANSITION_MANUAL_SUBFRAME);
+  statement.BindInt(4, ui::PAGE_TRANSITION_KEYWORD_GENERATED);
+
+  statement.Step();
+  return statement.ColumnInt(0);
+}
+
 bool VisitDatabase::GetStartDate(base::Time* first_visit) {
   sql::Statement statement(GetDB().GetCachedStatement(SQL_FROM_HERE,
       "SELECT MIN(visit_time) FROM visits WHERE visit_time != 0"));