Add proper path separator(\) for testing AX test cases on windows.

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

Index: content/browser/accessibility/dump_accessibility_tree_browsertest.cc
diff --git a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
index 5262bac174809429d4891c11ce4e5c15e65e2132..ab269f48538fc81bd3d13496db08e71827ff60b2 100644
--- a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
+++ b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
@@ -66,25 +66,23 @@ class DumpAccessibilityTreeTest : public DumpAccessibilityTestBase {
   void RunAriaTest(const base::FilePath::CharType* file_path) {
     base::FilePath dir_test_data;
     ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &dir_test_data));
-    base::FilePath test_path(
-        dir_test_data.AppendASCII("accessibility/aria"));
-    ASSERT_TRUE(base::PathExists(test_path))
-        << test_path.LossyDisplayName();
+    base::FilePath test_path(dir_test_data.AppendASCII("accessibility")
+        .AppendASCII("aria"));
+    ASSERT_TRUE(base::PathExists(test_path)) << test_path.LossyDisplayName();
 
-    base::FilePath aria_file = test_path.Append(base::FilePath(file_path));
-    RunTest(aria_file, "accessibility/aria");
+    base::FilePath event_file = test_path.Append(base::FilePath(file_path));

[dmazzoni, 2015/01/14 18:13:53]

nit: this should be aria_file, not event_file

+    RunTest(event_file, "accessibility/aria");
   }
 
   void RunHtmlTest(const base::FilePath::CharType* file_path) {
     base::FilePath dir_test_data;
     ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &dir_test_data));
-    base::FilePath test_path(
-        dir_test_data.AppendASCII("accessibility/html"));
-    ASSERT_TRUE(base::PathExists(test_path))
-        << test_path.LossyDisplayName();
+    base::FilePath test_path(dir_test_data.AppendASCII("accessibility")
+        .AppendASCII("html"));
+    ASSERT_TRUE(base::PathExists(test_path)) << test_path.LossyDisplayName();
 
-    base::FilePath html_file = test_path.Append(base::FilePath(file_path));
-    RunTest(html_file, "accessibility/html");
+    base::FilePath event_file = test_path.Append(base::FilePath(file_path));

[dmazzoni, 2015/01/14 18:13:53]

should be html_file

+    RunTest(event_file, "accessibility/html");
   }
 
   std::vector<std::string> Dump() override {