BASELINE: Update Chromium to 67.0.3396.47

Change-Id: Idcb1341782e417561a2473eeecc82642dafda5b7
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 46 insertions, 0 deletions

diff --git a/chromium/third_party/blink/renderer/platform/fonts/font_global_context.cc b/chromium/third_party/blink/renderer/platform/fonts/font_global_context.cc
new file mode 100644
index 00000000000..e90f6d72a80
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/fonts/font_global_context.cc
@@ -0,0 +1,46 @@
+// Copyright 2017 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 "third_party/blink/renderer/platform/fonts/font_global_context.h"
+
+#include "third_party/blink/renderer/platform/fonts/font_cache.h"
+#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
+#include "third_party/blink/renderer/platform/wtf/thread_specific.h"
+
+namespace blink {
+
+FontGlobalContext* FontGlobalContext::Get(CreateIfNeeded create_if_needed) {
+  DEFINE_THREAD_SAFE_STATIC_LOCAL(ThreadSpecific<FontGlobalContext*>,
+                                  font_persistent, ());
+  if (!*font_persistent && create_if_needed == kCreate) {
+    *font_persistent = new FontGlobalContext();
+  }
+  return *font_persistent;
+}
+
+FontGlobalContext::FontGlobalContext()
+    : harfbuzz_font_funcs_(nullptr),
+      default_locale_(nullptr),
+      system_locale_(nullptr),
+      default_locale_for_han_(nullptr),
+      has_default_locale_for_han_(false) {}
+
+void FontGlobalContext::ClearMemory() {
+  if (!Get(kDoNotCreate))
+    return;
+
+  GetFontCache().Invalidate();
+}
+
+void FontGlobalContext::ClearForTesting() {
+  FontGlobalContext* ctx = Get();
+  ctx->default_locale_ = nullptr;
+  ctx->system_locale_ = nullptr;
+  ctx->default_locale_for_han_ = nullptr;
+  ctx->has_default_locale_for_han_ = false;
+  ctx->layout_locale_map_.clear();
+  ctx->font_cache_.Invalidate();
+}
+
+}  // namespace blink