[windows] Make most file_win.cc functions use malloc for string conversions.

build/config/compiler/BUILD.gn

Index: build/config/compiler/BUILD.gn
diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index a2f8b130e88f5b2a3db974d1229c5c1f0e87c619..ec484c1d958660af425c7d5762b2f3a3cc0d99bf 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -732,10 +732,11 @@ config("optimize") {
 # Turn off optimizations.
 config("no_optimize") {
   if (is_win) {
+    # The only difference on windows is that the inlining is less agressive.

[siva, 2016/10/21 21:41:26]

aggressive

[zra, 2016/10/21 21:54:10]

Done.

+    # (We accept the default level). Otherwise it is very slow.
     cflags = [
       "/O2",  # Do some optimizations.
       "/Oy-",  # Disable omitting frame pointers, must be after /O2.
-      "/Ob0",  # Disable all inlining (on by default).
     ]
   } else if (is_android) {
     # On Android we kind of optimize some things that don't affect debugging