Flush gcda (code coverage) files manually in iOS Platform Test.

testing/coverage_util_ios.h

Index: testing/coverage_util_ios.h
diff --git a/testing/coverage_util_ios.h b/testing/coverage_util_ios.h
new file mode 100644
index 0000000000000000000000000000000000000000..ccf097d9b53249527927d458eff8065a1aa682cd
--- /dev/null
+++ b/testing/coverage_util_ios.h
@@ -0,0 +1,17 @@
+// 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.
+
+#ifndef TESTING_COVERAGE_UTIL_IOS_H_
+#define TESTING_COVERAGE_UTIL_IOS_H_
+
+namespace coverage_util {
+
+// Flushes .gcda coverage files if ENABLE_TEST_CODE_COVERAGE is defined and
+// current platform is iOS. iOS 7 does not call any code at the "end" of an app
+// so flushing should be performed manually.
+void FlushCoverageDataIfNecessary();
+
+}  // namespace coverage_util
+
+#endif  // TESTING_COVERAGE_UTIL_IOS_H_