Use precompiled headers for most large projects.

build/precompile.h

Index: build/precompile.h
diff --git a/build/precompile.h b/build/precompile.h
new file mode 100644
index 0000000000000000000000000000000000000000..dc9993523e8b5e2fc9a1c919d89b301e7d5e9c9e
--- /dev/null
+++ b/build/precompile.h
@@ -0,0 +1,76 @@
+#define STRICT
+#include <Windows.h>
+// Need to figure out if/how this can be included in the PCH in general.

[jeanluc1, 2011/08/22 22:20:24]

This should be a TODO(joi)

[Jói, 2011/08/24 13:56:33]

Sorry, forgot to clean this up before uploading.  Have cleaned up the file now,
added copyright header, sorted things and so forth.

+/*
+#include <atlbase.h>
+#include <atlapp.h>
+#include <atlcom.h>
+#include <atlcrack.h>  // 2
+#include <atlctrls.h>  // 2

[jeanluc1, 2011/08/22 22:20:24]

What do the comments mean?

[Jói, 2011/08/24 13:56:33]

Added a comment to explain:

// Numeric comments beside includes are the number of times they are
// included under src/chrome/browser, which was used as a baseline for
// deciding what to include in the PCH. It may be possible to tweak the
// speed of the build by commenting out or removing some of the less
// frequently used headers.

+#include <atlmisc.h>  // 2
+#include <atlsafe.h>  // 1
+#include <atltheme.h>  // 1
+#include <atlwin.h>  // 2
+*/
+#include <Objbase.h>  // 2

[jeanluc1, 2011/08/22 22:20:24]

This is not in alphabetical order.

[Jói, 2011/08/24 13:56:33]

I've sorted into three sections to the extent possible, first Windows-specific,
then standard library, then C++ standard library.

+#include <algorithm>
+#include <bitset>  // 3
+#include <cmath>
+#include <commctrl.h>  // 2
+#include <commdlg.h>  // 3
+#include <cryptuiapi.h>  // 2
+#include <cstddef>
+#include <cstdio>  // 3
+#include <cstdlib>  // 2
+#include <cstring>
+#include <deque>
+#include <dwmapi.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fstream>  // 3
+#include <functional>
+#include <iomanip>  // 2
+#include <iosfwd>  // 2
+#include <iostream>  // 1
+#include <iterator>
+#include <limits.h>  // 4
+#include <limits>
+#include <list>
+#include <map>
+#include <math.h>
+#include <memory.h>  // 1
+#include <numeric>  // 2
+#include <objidl.h>  // 1
+#include <ole2.h>  // 1
+#include <oleacc.h>  // 2
+#include <oleauto.h>  // 1
+#include <oleidl.h>  // 1
+#include <ostream>
+#include <propkey.h>  // 2
+#include <propvarutil.h>  // 2
+#include <pstore.h>  // 2
+#include <queue>
+#include <set>
+#include <shellapi.h>
+#include <shlguid.h>  // 1
+//#include <shlobj.h>

[jeanluc1, 2011/08/22 22:20:24]

Why commented out (here and below)?

[Jói, 2011/08/24 13:56:33]

Added explanation; it caused conflicts that possibly could be resolved, and if
so would be good to bring back.

+#include <shlwapi.h>  // 1
+#include <shobjidl.h>  // 4
+#include <signal.h>
+#include <sstream>
+#include <stack>
+#include <stdarg.h>  // 1
+#include <stddef.h>
+//#include <stdint.h>  // 3
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <time.h>  // 4
+#include <urlhist.h>  // 2
+#include <utility>
+#include <vector>
+#include <wincrypt.h>  // 4
+//#include <winsock2.h>  // 4
+//#include <Ws2spi.h>  // 1
+#include <wtypes.h>  // 2