GN: Move towards only using / on Windows

tools/gn/path_output_unittest.cc

Index: tools/gn/path_output_unittest.cc
diff --git a/tools/gn/path_output_unittest.cc b/tools/gn/path_output_unittest.cc
index 49f29c9a55bbadca719e0eb3469063e3cf9acc52..063f7f736bf974f2a6b44c60502dcb38499c4ef5 100644
--- a/tools/gn/path_output_unittest.cc
+++ b/tools/gn/path_output_unittest.cc
@@ -11,7 +11,7 @@
 
 TEST(PathOutput, Basic) {
   SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NONE, false);
+  PathOutput writer(build_dir, ESCAPE_NONE);
   {
     // Normal source-root path.
     std::ostringstream out;
@@ -52,7 +52,7 @@ TEST(PathOutput, Basic) {
 // Same as basic but the output dir is the root.
 TEST(PathOutput, BasicInRoot) {
   SourceDir build_dir("//");
-  PathOutput writer(build_dir, ESCAPE_NONE, false);
+  PathOutput writer(build_dir, ESCAPE_NONE);
   {
     // Normal source-root path.
     std::ostringstream out;
@@ -69,7 +69,7 @@ TEST(PathOutput, BasicInRoot) {
 
 TEST(PathOutput, NinjaEscaping) {
   SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NINJA, false);
+  PathOutput writer(build_dir, ESCAPE_NINJA);
   {
     // Spaces and $ in filenames.
     std::ostringstream out;
@@ -86,7 +86,7 @@ TEST(PathOutput, NinjaEscaping) {
 
 TEST(PathOutput, ShellEscaping) {
   SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_SHELL, false);
+  PathOutput writer(build_dir, ESCAPE_SHELL);
   {
     // Spaces in filenames should get quoted.
     std::ostringstream out;
@@ -113,21 +113,17 @@ TEST(PathOutput, ShellEscaping) {
 
 TEST(PathOutput, SlashConversion) {
   SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NINJA, true);
+  PathOutput writer(build_dir, ESCAPE_NINJA);
   {
     std::ostringstream out;
     writer.WriteFile(out, SourceFile("//foo/bar.cc"));
-#if defined(OS_WIN)
-    EXPECT_EQ("..\\..\\foo\\bar.cc", out.str());
-#else
     EXPECT_EQ("../../foo/bar.cc", out.str());
-#endif
   }
 }
 
 TEST(PathOutput, InhibitQuoting) {
   SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_SHELL, false);
+  PathOutput writer(build_dir, ESCAPE_SHELL);
   writer.set_inhibit_quoting(true);
   {
     // We should get unescaped spaces in the output with no quotes.
@@ -140,7 +136,7 @@ TEST(PathOutput, InhibitQuoting) {
 TEST(PathOutput, WriteDir) {
   {
     SourceDir build_dir("//out/Debug/");
-    PathOutput writer(build_dir, ESCAPE_NINJA, false);
+    PathOutput writer(build_dir, ESCAPE_NINJA);
     {
       std::ostringstream out;
       writer.WriteDir(out, SourceDir("//foo/bar/"),
@@ -216,7 +212,7 @@ TEST(PathOutput, WriteDir) {
   }
   {
     // Empty build dir writer.
-    PathOutput root_writer(SourceDir("//"), ESCAPE_NINJA, false);
+    PathOutput root_writer(SourceDir("//"), ESCAPE_NINJA);
     {
       std::ostringstream out;
       root_writer.WriteDir(out, SourceDir("//"),