content: Copy layout test helpers from Blink to Chromium.

content/shell/renderer/test_runner/helper/layout_test_helper_mac.mm

+// Copyright 2014 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.
+
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ * Copyright (C) 2012 Apple Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import <AvailabilityMacros.h>
+#import <AppKit/AppKit.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// This is a simple helper app that changes the color sync profile to the
+// generic profile and back when done.  This program is managed by the layout
+// test script, so it can do the job for multiple DumpRenderTree while they are
+// running layout tests.
+
+namespace {
+
+#if defined(MAC_OS_X_VERSION_10_7) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7

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nit. wrap at 80c

[tfarina, 2014/01/03 22:08:52]

Done.

+
+CFURLRef sUserColorProfileURL;

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nit. user_color_profile_url

[tfarina, 2014/01/03 22:08:52]

Done.

+
+void installLayoutTestColorProfile() {

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InstallLayout... (with a capital I)

[tfarina, 2014/01/03 22:08:52]

Done.

+  // To make sure we get consistent colors (not dependent on the chosen color
+  // space of the main display), we force the generic RGB color profile.
+  // This causes a change the user can see.
+
+  CFUUIDRef mainDisplayID = CGDisplayCreateUUIDFromDisplayID(CGMainDisplayID());

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main_display_id

[tfarina, 2014/01/03 22:08:52]

Done.

+
+  if (!sUserColorProfileURL) {
+    CFDictionaryRef deviceInfo = ColorSyncDeviceCopyDeviceInfo(

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device_info

[tfarina, 2014/01/03 22:08:52]

Done.

+        kColorSyncDisplayDeviceClass, mainDisplayID);
+
+    if (!deviceInfo) {
+      NSLog(@"No display attached to system; not setting main display's color "
+             "profile.");
+      CFRelease(mainDisplayID);
+      return;
+    }
+
+    CFDictionaryRef profileInfo = (CFDictionaryRef)CFDictionaryGetValue(

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profile_info

[tfarina, 2014/01/03 22:08:52]

Done.

+        deviceInfo, kColorSyncCustomProfiles);
+    if (profileInfo) {
+      sUserColorProfileURL =
+          (CFURLRef)CFDictionaryGetValue(profileInfo, CFSTR("1"));
+      CFRetain(sUserColorProfileURL);
+    } else {
+      profileInfo = (CFDictionaryRef)CFDictionaryGetValue(
+          deviceInfo, kColorSyncFactoryProfiles);
+      CFDictionaryRef factoryProfile =

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factory_profile

[tfarina, 2014/01/03 22:08:52]

Done.

+          (CFDictionaryRef)CFDictionaryGetValue(profileInfo, CFSTR("1"));
+      sUserColorProfileURL = (CFURLRef)CFDictionaryGetValue(
+          factoryProfile, kColorSyncDeviceProfileURL);
+      CFRetain(sUserColorProfileURL);
+    }
+
+    CFRelease(deviceInfo);
+  }
+
+  ColorSyncProfileRef genericRGBProfile =

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generic_rgb_profile

[tfarina, 2014/01/03 22:08:52]

Done.

+      ColorSyncProfileCreateWithName(kColorSyncGenericRGBProfile);
+  CFErrorRef error;
+  CFURLRef profileURL = ColorSyncProfileGetURL(genericRGBProfile, &error);

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profile_url

[tfarina, 2014/01/03 22:08:52]

Done.

+  if (!profileURL) {
+    NSLog(@"Failed to get URL of Generic RGB color profile! Many pixel tests "
+           "may fail as a result. Error: %@",
+          error);
+
+    if (sUserColorProfileURL) {
+      CFRelease(sUserColorProfileURL);
+      sUserColorProfileURL = 0;
+    }
+
+    CFRelease(genericRGBProfile);
+    CFRelease(mainDisplayID);
+    return;
+  }
+
+  CFMutableDictionaryRef profileInfo =

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profile_info

[tfarina, 2014/01/03 22:08:52]

Done.

+      CFDictionaryCreateMutable(kCFAllocatorDefault,
+                                0,
+                                &kCFTypeDictionaryKeyCallBacks,
+                                &kCFTypeDictionaryValueCallBacks);
+  CFDictionarySetValue(
+      profileInfo, kColorSyncDeviceDefaultProfileID, profileURL);
+
+  if (!ColorSyncDeviceSetCustomProfiles(
+           kColorSyncDisplayDeviceClass, mainDisplayID, profileInfo)) {
+    NSLog(@"Failed to set color profile for main display! Many pixel tests may "
+           "fail as a result.");
+
+    if (sUserColorProfileURL) {
+      CFRelease(sUserColorProfileURL);
+      sUserColorProfileURL = 0;
+    }
+  }
+
+  CFRelease(profileInfo);
+  CFRelease(genericRGBProfile);
+  CFRelease(mainDisplayID);
+}
+
+void restoreUserColorProfile(void) {

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Restore... and only () instead of (void)

[tfarina, 2014/01/03 22:08:52]

Done.

+  // This is used as a signal handler, and thus the calls into ColorSync are
+  // unsafe.
+  // But we might as well try to restore the user's color profile, we're going
+  // down anyway...
+
+  if (!sUserColorProfileURL)
+    return;
+
+  CFUUIDRef mainDisplayID = CGDisplayCreateUUIDFromDisplayID(CGMainDisplayID());

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main_display_id

[tfarina, 2014/01/03 22:08:52]

Done.

+  CFMutableDictionaryRef profileInfo =

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profile_info

[tfarina, 2014/01/03 22:08:52]

Done.

+      CFDictionaryCreateMutable(kCFAllocatorDefault,
+                                0,
+                                &kCFTypeDictionaryKeyCallBacks,
+                                &kCFTypeDictionaryValueCallBacks);
+  CFDictionarySetValue(
+      profileInfo, kColorSyncDeviceDefaultProfileID, sUserColorProfileURL);
+  ColorSyncDeviceSetCustomProfiles(
+      kColorSyncDisplayDeviceClass, mainDisplayID, profileInfo);
+  CFRelease(mainDisplayID);
+  CFRelease(profileInfo);
+}
+
+#else  // For Snow Leopard and before, use older CM* API.
+
+const char colorProfilePath[] =

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color_profile_path

[tfarina, 2014/01/03 22:08:52]

Done.

+    "/System/Library/ColorSync/Profiles/Generic RGB Profile.icc";
+
+CMProfileLocation initialColorProfileLocation;  // The locType field is

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initial_color_profile_location. Can you put the comment above this line?

[tfarina, 2014/01/03 22:08:52]

Done.

+                                                // initialized to 0 which is the
+                                                // same as cmNoProfileBase.
+
+void installLayoutTestColorProfile() {

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Install..

[tfarina, 2014/01/03 22:08:52]

Done.

+  // To make sure we get consistent colors (not dependent on the Main display),
+  // we force the generic rgb color profile.  This cases a change the user can
+  // see.
+  const CMDeviceScope scope = {kCFPreferencesCurrentUser,
+                               kCFPreferencesCurrentHost};
+
+  CMProfileRef profile = 0;
+  int error =
+      CMGetProfileByAVID((CMDisplayIDType)kCGDirectMainDisplay, &profile);
+  if (!error) {
+    UInt32 size = sizeof(initialColorProfileLocation);
+    error = NCMGetProfileLocation(profile, &initialColorProfileLocation, &size);
+    CMCloseProfile(profile);
+  }
+  if (error) {
+    NSLog(@"failed to get the current color profile, pixmaps won't match. "
+           "Error: %d",
+          (int)error);
+    initialColorProfileLocation.locType = cmNoProfileBase;
+    return;
+  }
+
+  CMProfileLocation location;
+  location.locType = cmPathBasedProfile;
+  strncpy(location.u.pathLoc.path,
+          colorProfilePath,
+          sizeof(location.u.pathLoc.path));
+  error = CMSetDeviceProfile(cmDisplayDeviceClass,
+                             (CMDeviceID)kCGDirectMainDisplay,
+                             &scope,
+                             cmDefaultProfileID,
+                             &location);
+  if (error) {
+    NSLog(@"failed install the generic color profile, pixmaps won't match. "
+           "Error: %d",
+          (int)error);
+    initialColorProfileLocation.locType = cmNoProfileBase;
+  }
+}
+
+void restoreUserColorProfile(void) {

[jochen (gone - plz use gerrit), 2014/01/03 14:08:58]

Restore and no (void)

+  // This is used as a signal handler, and thus the calls into ColorSync are
+  // unsafe.
+  // But we might as well try to restore the user's color profile, we're going
+  // down anyway...
+  if (initialColorProfileLocation.locType != cmNoProfileBase) {
+    const CMDeviceScope scope = {kCFPreferencesCurrentUser,
+                                 kCFPreferencesCurrentHost};
+    int error = CMSetDeviceProfile(cmDisplayDeviceClass,
+                                   (CMDeviceID)kCGDirectMainDisplay,
+                                   &scope,
+                                   cmDefaultProfileID,
+                                   &initialColorProfileLocation);
+    if (error) {
+      NSLog(@"Failed to restore color profile, use System Preferences -> "
+             "Displays -> Color to reset. Error: %d",
+            (int)error);
+    }
+    initialColorProfileLocation.locType = cmNoProfileBase;
+  }
+}
+
+#endif
+
+void simpleSignalHandler(int sig) {

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SimpleSignal..

+  // Try to restore the color profile and try to go down cleanly
+  restoreUserColorProfile();
+  exit(128 + sig);
+}
+
+}  // namespace
+
+int main(int argc, char* argv[]) {
+  NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
+  // Hooks the ways we might get told to clean up...
+  signal(SIGINT, simpleSignalHandler);
+  signal(SIGHUP, simpleSignalHandler);
+  signal(SIGTERM, simpleSignalHandler);
+
+  // Save off the current profile, and then install the layout test profile.
+  installLayoutTestColorProfile();
+
+  // Let the script know we're ready
+  printf("ready\n");
+  fflush(stdout);
+
+  // Wait for any key (or signal)
+  getchar();
+
+  // Restore the profile
+  restoreUserColorProfile();
+
+  [pool release];
+  return 0;
+}