[tracing] Add sqlite memory statistics to tracing.

sql/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//testing/test.gni")
 
 component("sql") {
   sources = [
     "connection.cc",
     "connection.h",
     "error_delegate_util.cc",
     "error_delegate_util.h",
     "init_status.h",
     "meta_table.cc",
     "meta_table.h",
     "recovery.cc",
     "recovery.h",
+    "sql_memory_dump_provider.cc",
+    "sql_memory_dump_provider.h",
     "statement.cc",
     "statement.h",
     "transaction.cc",
     "transaction.h",
   ]
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   defines = [ "SQL_IMPLEMENTATION" ]
@@ skipping 42 matching lines @@
   deps = [
     ":sql_unittests",
   ]
 }
 
 test("sql_unittests") {
   sources = [
     "connection_unittest.cc",
     "meta_table_unittest.cc",
     "recovery_unittest.cc",
+    "sql_memory_dump_provider_unittest.cc",
     "sqlite_features_unittest.cc",
     "statement_unittest.cc",
     "test/paths.cc",
     "test/paths.h",
     "test/run_all_unittests.cc",
     "test/sql_test_base.cc",
     "test/sql_test_base.h",
     "test/sql_test_suite.cc",
     "test/sql_test_suite.h",
     "transaction_unittest.cc",
@@ skipping 33 matching lines @@
   #'target_name': 'sql_unittests_apk',
   #'type': 'none',
   #'dependencies': [
   #  'sql_unittests',
   #],
   #'variables': {
   #  'test_suite_name': 'sql_unittests',
   #},
   #'includes': [ '../build/apk_test.gypi' ],
 }