diff --git a/sql/connection_memory_dump_provider.cc b/sql/connection_memory_dump_provider.cc
index 5eecf71cb647ab..a789a73ad97053 100644
--- a/sql/connection_memory_dump_provider.cc
+++ b/sql/connection_memory_dump_provider.cc
@@ -17,7 +17,7 @@ ConnectionMemoryDumpProvider::ConnectionMemoryDumpProvider(
     const std::string& name)
     : db_(db), connection_name_(name) {}
 
-ConnectionMemoryDumpProvider::~ConnectionMemoryDumpProvider() {}
+ConnectionMemoryDumpProvider::~ConnectionMemoryDumpProvider() = default;
 
 void ConnectionMemoryDumpProvider::ResetDatabase() {
   base::AutoLock lock(lock_);
diff --git a/sql/connection_unittest.cc b/sql/connection_unittest.cc
index c4187f190e3bc1..800e775c94aea3 100644
--- a/sql/connection_unittest.cc
+++ b/sql/connection_unittest.cc
@@ -60,7 +60,7 @@ class ScopedMockTimeSource {
     MockTimeSource(ScopedMockTimeSource& owner)
         : owner_(owner) {
     }
-    ~MockTimeSource() override {}
+    ~MockTimeSource() override = default;
 
     base::TimeTicks Now() override {
       base::TimeTicks ret(owner_.current_time_);
diff --git a/sql/meta_table.cc b/sql/meta_table.cc
index c9cdb24b38210e..9628eb5c024bc3 100644
--- a/sql/meta_table.cc
+++ b/sql/meta_table.cc
@@ -58,8 +58,7 @@ namespace sql {
 MetaTable::MetaTable() : db_(NULL) {
 }
 
-MetaTable::~MetaTable() {
-}
+MetaTable::~MetaTable() = default;
 
 // static
 constexpr int64_t MetaTable::kMmapFailure;
diff --git a/sql/sql_memory_dump_provider.cc b/sql/sql_memory_dump_provider.cc
index bb6d81306c000c..133a830c5c3474 100644
--- a/sql/sql_memory_dump_provider.cc
+++ b/sql/sql_memory_dump_provider.cc
@@ -17,9 +17,9 @@ SqlMemoryDumpProvider* SqlMemoryDumpProvider::GetInstance() {
       base::LeakySingletonTraits<SqlMemoryDumpProvider>>::get();
 }
 
-SqlMemoryDumpProvider::SqlMemoryDumpProvider() {}
+SqlMemoryDumpProvider::SqlMemoryDumpProvider() = default;
 
-SqlMemoryDumpProvider::~SqlMemoryDumpProvider() {}
+SqlMemoryDumpProvider::~SqlMemoryDumpProvider() = default;
 
 bool SqlMemoryDumpProvider::OnMemoryDump(
     const base::trace_event::MemoryDumpArgs& args,
diff --git a/sql/test/sql_test_base.cc b/sql/test/sql_test_base.cc
index 52930bb3490fe1..3eabb564cba596 100644
--- a/sql/test/sql_test_base.cc
+++ b/sql/test/sql_test_base.cc
@@ -9,11 +9,9 @@
 
 namespace sql {
 
-SQLTestBase::SQLTestBase() {
-}
+SQLTestBase::SQLTestBase() = default;
 
-SQLTestBase::~SQLTestBase() {
-}
+SQLTestBase::~SQLTestBase() = default;
 
 base::FilePath SQLTestBase::db_path() {
   return temp_dir_.GetPath().AppendASCII("SQLTest.db");
diff --git a/sql/test/sql_test_suite.cc b/sql/test/sql_test_suite.cc
index 0dace7419a0b94..e7743280bfdd8f 100644
--- a/sql/test/sql_test_suite.cc
+++ b/sql/test/sql_test_suite.cc
@@ -12,7 +12,7 @@ namespace sql {
 SQLTestSuite::SQLTestSuite(int argc, char** argv)
     : base::TestSuite(argc, argv) {}
 
-SQLTestSuite::~SQLTestSuite() {}
+SQLTestSuite::~SQLTestSuite() = default;
 
 void SQLTestSuite::Initialize() {
   base::TestSuite::Initialize();