Merge color options into ColorBehavior

third_party/WebKit/Source/platform/graphics/ColorBehavior.cpp

Index: third_party/WebKit/Source/platform/graphics/ColorBehavior.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/ColorBehavior.cpp b/third_party/WebKit/Source/platform/graphics/ColorBehavior.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..781ccc1f6d606e921424e537d63332411d0afdf5
--- /dev/null
+++ b/third_party/WebKit/Source/platform/graphics/ColorBehavior.cpp
@@ -0,0 +1,69 @@
+// Copyright 2016 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 "platform/graphics/ColorBehavior.h"
+
+#include "platform/graphics/BitmapImageMetrics.h"
+#include "third_party/skia/include/core/SkColorSpace.h"
+#include "wtf/SpinLock.h"
+
+namespace blink {
+
+namespace {
+
+// The output device color space is global and shared across multiple threads.
+SpinLock gTargetColorSpaceLock;
+SkColorSpace* gTargetColorSpace = nullptr;
+
+}  // namespace
+
+// static
+void ColorBehavior::setGlobalTargetColorProfile(
+    const WebVector<char>& profile) {
+  if (profile.isEmpty())
+    return;
+
+  // Take a lock around initializing and accessing the global device color
+  // profile.
+  SpinLock::Guard guard(gTargetColorSpaceLock);
+
+  // Layout tests expect that only the first call will take effect.
+  if (gTargetColorSpace)
+    return;
+
+  gTargetColorSpace =
+      SkColorSpace::MakeICC(profile.data(), profile.size()).release();
+
+  // UMA statistics.
+  BitmapImageMetrics::countOutputGamma(gTargetColorSpace);
+}
+
+// static
+sk_sp<SkColorSpace> ColorBehavior::globalTargetColorSpace() {
+  // Take a lock around initializing and accessing the global device color
+  // profile.
+  SpinLock::Guard guard(gTargetColorSpaceLock);
+
+  // Initialize the output device profile to sRGB if it has not yet been
+  // initialized.
+  if (!gTargetColorSpace) {
+    gTargetColorSpace =
+        SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named).release();
+  }
+
+  gTargetColorSpace->ref();
+  return sk_sp<SkColorSpace>(gTargetColorSpace);
+}
+
+// static
+ColorBehavior ColorBehavior::transformToGlobalTarget() {
+  return ColorBehavior(Type::TransformTo, globalTargetColorSpace());
+}
+
+// static
+ColorBehavior ColorBehavior::transformToTargetForTesting() {
+  return transformToGlobalTarget();
+}
+
+}  // namespace blink