Adds monitor ICC profile support for win and mac

ui/gfx/color_profile_win.cc

+// Copyright (c) 2012 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 "ui/gfx/color_profile.h"
+
+#include <stdio.h>
+#include <windows.h>
+
+#include "base/sys_byteorder.h"
+
+// Max profile size is 4M.
+#define MAX_PROFILE_LENGTH (4 * 1000 * 1000)
+
+namespace {
+
+size_t ReadLengthFromFile(FILE *file) {
+  uint32 length;
+
+  if (fread(&length, 1, sizeof(length), file) != sizeof(length))
+    return 0;
+
+  return base::NetToHost32(length);
+}
+
+}  // namespace
+
+namespace gfx {
+
+void ColorProfile::ReadProfile(gfx::NativeViewId parent_window,
+                               std::vector<char>* profile) {

[abarth-chromium, 2012/06/19 20:36:50]

Should we ASSERT that we're on the FILE thread here?  Maybe we do that
automatically already.

[Evan Stade, 2012/06/19 21:08:56]

yea, I think it happens automatically with browser thread restrictions stuff
(and the code at this level doesn't know about the different browser threads so
it wouldn't be possible to check here)

[Evan Stade, 2012/06/19 21:32:38]

nix this comment ^

use file_util::ReadFileToString?

[tpayne, 2012/06/19 21:44:52]

Done.

[tpayne, 2012/06/20 01:36:09]

file_util::ReadFileAsString already does this.

[tpayne, 2012/06/20 01:36:09]

Actually done this time.

+
+  HDC screen_dc = GetDC(NULL);
+  DWORD path_len = MAX_PATH;
+  WCHAR path[MAX_PATH];
+
+  BOOL res = GetICMProfile(screen_dc,
+                           &path_len,
+                           reinterpret_cast<LPWSTR>(&path));
+  ReleaseDC(NULL, screen_dc);
+  if (!res)
+    return;
+  FILE* file = _wfopen(path, L"rb");
+  if (!file)
+    return;
+  size_t length = ReadLengthFromFile(file);
+  if (length == 0 || length > MAX_PROFILE_LENGTH) {
+    fclose(file);
+    return;
+  }
+  char* buffer = reinterpret_cast<char*>(malloc(length));
+  if (!buffer) {
+    fclose(file);
+    return;
+  }
+
+  if (fread(buffer, 1, length, file) == length)
+    profile->assign(buffer, buffer + length);
+  free(buffer);
+  fclose(file);
+}
+
+}  // namespace gfx
+