Database usage adjustment for .../history

chrome/browser/history/in_memory_database.cc

Index: chrome/browser/history/in_memory_database.cc
diff --git a/chrome/browser/history/in_memory_database.cc b/chrome/browser/history/in_memory_database.cc
index cf64b5a4f9c71a489d0229e4cea136695089d379..b4fedaa25e3c7beec35cc1d1a36e23d5065bc294 100644
--- a/chrome/browser/history/in_memory_database.cc
+++ b/chrome/browser/history/in_memory_database.cc
@@ -69,10 +69,6 @@ bool InMemoryDatabase::InitFromDisk(const FilePath& history_name) {
   // Attach to the history database on disk.  (We can't ATTACH in the middle of
   // a transaction.)
   sql::Statement attach(GetDB().GetUniqueStatement("ATTACH ? AS history"));
-  if (!attach) {
-    NOTREACHED() << "Unable to attach to history database.";
-    return false;
-  }
 #if defined(OS_POSIX)
   attach.BindString(0, history_name.value());
 #else
@@ -100,7 +96,7 @@ bool InMemoryDatabase::InitFromDisk(const FilePath& history_name) {
     // an average of only 35 rows).
     sql::Statement visit_count(db_.GetUniqueStatement(
         "SELECT sum(visit_count) FROM urls"));
-    if (visit_count && visit_count.Step()) {
+    if (visit_count.Step()) {
       UMA_HISTOGRAM_COUNTS("History.InMemoryTypedUrlVisitCount",
                            visit_count.ColumnInt(0));
     }