Offer user to send feedback from profile error dialog

components/webdata/common/web_database_backend.cc

Index: components/webdata/common/web_database_backend.cc
diff --git a/components/webdata/common/web_database_backend.cc b/components/webdata/common/web_database_backend.cc
index 7cb343e62f02e5a76ba03a4fff2f999a07a33491..509403552dfaf4cbbb5ea45ba2f11ca1c1a4d3fd 100644
--- a/components/webdata/common/web_database_backend.cc
+++ b/components/webdata/common/web_database_backend.cc
@@ -4,6 +4,7 @@
 
 #include "components/webdata/common/web_database_backend.h"
 
+#include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ -11,6 +12,7 @@
 #include "components/webdata/common/web_data_request_manager.h"
 #include "components/webdata/common/web_database.h"
 #include "components/webdata/common/web_database_table.h"
+#include "sql/error_delegate_util.h"
 
 using base::Bind;
 using base::FilePath;
@@ -24,6 +26,7 @@ WebDatabaseBackend::WebDatabaseBackend(
       request_manager_(new WebDataRequestManager()),
       init_status_(sql::INIT_FAILURE),
       init_complete_(false),
+      should_ignore_db_errors_(false),
       delegate_(delegate) {
 }
 
@@ -35,7 +38,7 @@ void WebDatabaseBackend::AddTable(std::unique_ptr<WebDatabaseTable> table) {
 void WebDatabaseBackend::InitDatabase() {
   LoadDatabaseIfNecessary();
   if (delegate_) {
-    delegate_->DBLoaded(init_status_);
+    delegate_->DBLoaded(init_status_, db_diagnostics_);
   }
 }
 
@@ -46,15 +49,18 @@ sql::InitStatus WebDatabaseBackend::LoadDatabaseIfNecessary() {
   init_complete_ = true;
   db_.reset(new WebDatabase());
 
-  for (ScopedVector<WebDatabaseTable>::iterator it = tables_.begin();
-       it != tables_.end(); ++it) {
-    db_->AddTable(*it);
-  }
+  for (const auto& table : tables_)
+    db_->AddTable(table);
 
+  // Unretained to avoid a ref loop since we own |db_|.
+  db_->set_error_callback(base::Bind(&WebDatabaseBackend::DatabaseErrorCallback,
+                                     base::Unretained(this)));
+  db_diagnostics_.clear();
   init_status_ = db_->Init(db_path_);
   if (init_status_ != sql::INIT_OK) {
     LOG(ERROR) << "Cannot initialize the web database: " << init_status_;
-    db_.reset(NULL);
+    sql::AppendCorruptFileInfoToDiagnostics(db_path_, &db_diagnostics_);
+    db_.reset();
     return init_status_;
   }
 
@@ -113,6 +119,15 @@ WebDatabaseBackend::~WebDatabaseBackend() {
   ShutdownDatabase();
 }
 
+void WebDatabaseBackend::DatabaseErrorCallback(int error,
+                                               sql::Statement* stmt) {
+  // We ignore any further error callbacks on the first catastrophic error.
+  if (!should_ignore_db_errors_ && sql::IsErrorCatastrophic(error)) {
+    should_ignore_db_errors_ = true;
+    db_diagnostics_ = db_->GetDiagnosticInfo(error, stmt);
+  }
+}
+
 void WebDatabaseBackend::Commit() {
   DCHECK(db_);
   DCHECK_EQ(sql::INIT_OK, init_status_);