content: Copy layout test helpers from Blink to Chromium.

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

Index: content/shell/renderer/test_runner/helper/LayoutTestHelperMac.mm
diff --git a/content/shell/renderer/test_runner/helper/LayoutTestHelperMac.mm b/content/shell/renderer/test_runner/helper/LayoutTestHelperMac.mm
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index 0000000000000000000000000000000000000000..9dc00c2f4432c3a4233422aa9559bbbb02fe23f2
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+/*

[jochen (gone - plz use gerrit), 2014/01/03 13:16:52]

can you put a chromium style copyright header on top of this one?

We'll need to keep the old one around because of the Apple line.

[tfarina, 2014/01/03 13:58:06]

Done.

+ * 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
+
+CFURLRef sUserColorProfileURL;
+
+void installLayoutTestColorProfile()
+{
+    // 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());
+    
+    if (!sUserColorProfileURL) {
+        CFDictionaryRef deviceInfo = ColorSyncDeviceCopyDeviceInfo(kColorSyncDisplayDeviceClass, mainDisplayID);
+
+        if (!deviceInfo) {
+            NSLog(@"No display attached to system; not setting main display's color profile.");
+            CFRelease(mainDisplayID);
+            return;
+        }
+
+        CFDictionaryRef profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncCustomProfiles);
+        if (profileInfo) {
+            sUserColorProfileURL = (CFURLRef)CFDictionaryGetValue(profileInfo, CFSTR("1"));
+            CFRetain(sUserColorProfileURL);
+        } else {
+            profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncFactoryProfiles);
+            CFDictionaryRef factoryProfile = (CFDictionaryRef)CFDictionaryGetValue(profileInfo, CFSTR("1"));
+            sUserColorProfileURL = (CFURLRef)CFDictionaryGetValue(factoryProfile, kColorSyncDeviceProfileURL);
+            CFRetain(sUserColorProfileURL);
+        }
+        
+        CFRelease(deviceInfo);
+    }
+
+    ColorSyncProfileRef genericRGBProfile = ColorSyncProfileCreateWithName(kColorSyncGenericRGBProfile);
+    CFErrorRef error;
+    CFURLRef profileURL = ColorSyncProfileGetURL(genericRGBProfile, &error);
+    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 = 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)
+{
+    // 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());
+    CFMutableDictionaryRef profileInfo = 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[] = "/System/Library/ColorSync/Profiles/Generic RGB Profile.icc";
+
+CMProfileLocation initialColorProfileLocation; // The locType field is initialized to 0 which is the same as cmNoProfileBase.
+
+void installLayoutTestColorProfile()
+{
+    // 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)
+{
+    // 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)
+{
+    // 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;
+}