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..24d4d30aa0a84fba6762a3986933b3b3f718029f 100644
--- a/chrome/browser/history/in_memory_database.cc
+++ b/chrome/browser/history/in_memory_database.cc
@@ -69,19 +69,13 @@ 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
   attach.BindString(0, WideToUTF8(history_name.value()));
 #endif
-  if (!attach.Run()) {
-    NOTREACHED() << GetDB().GetErrorMessage();
+  if (!attach.Run())
     return false;
-  }
 
   // Copy URL data to memory.
   base::TimeTicks begin_load = base::TimeTicks::Now();
@@ -100,7 +94,7 @@ 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));
     }