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

iOS 7 does not call any code at the "end" of an app so flushing should
be performed manually.

BUG=392265

Review URL: https://codereview.chromium.org/375033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282195 0039d316-1c4b-4281-b951-d872f2087c98

testing/coverage_util_ios.cc

+// 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.
+
+extern "C" void __gcov_flush();
+
+namespace coverage_util {
+
+void FlushCoverageDataIfNecessary() {
+#if defined(ENABLE_TEST_CODE_COVERAGE)
+  __gcov_flush();
+#endif
+}
+
+}  // namespace coverage_util

testing/coverage_util_ios.h

+// 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. 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_

testing/gtest.gyp

@@ -66,7 +66,6 @@
           'sources': [
             'gtest_mac.h',
             'gtest_mac.mm',
-            'platform_test_mac.mm'
           ],
           'link_settings': {
             'libraries': [
@@ -74,6 +73,11 @@
             ],
           },
         }],
+        ['OS == "mac"', {
+          'sources': [
+            'platform_test_mac.mm',
+          ],
+        }],
         ['OS == "ios"', {
           'dependencies' : [
             '<(DEPTH)/testing/iossim/iossim.gyp:iossim#host',
@@ -105,6 +109,11 @@
               }],
             ],
           },
+          'sources': [
+            'coverage_util_ios.cc',
+            'coverage_util_ios.h',
+            'platform_test_ios.mm',
+          ],
         }],
         ['OS=="ios" and asan==1', {
           'direct_dependent_settings': {

testing/platform_test_ios.mm

+// 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.
+
+#include "platform_test.h"
+
+#import <Foundation/Foundation.h>
+
+#include "coverage_util_ios.h"
+
+PlatformTest::PlatformTest()
+    : pool_([[NSAutoreleasePool alloc] init]) {
+}
+
+PlatformTest::~PlatformTest() {
+  [pool_ release];
+  coverage_util::FlushCoverageDataIfNecessary();
+}