Clear matched properties cache for theme color changes.

Source/core/rendering/RenderThemeTest.cpp

Index: Source/core/rendering/RenderThemeTest.cpp
diff --git a/Source/core/rendering/RenderThemeTest.cpp b/Source/core/rendering/RenderThemeTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2818e8ba6bd707e0746d64d847685a5bb7ad7526
--- /dev/null
+++ b/Source/core/rendering/RenderThemeTest.cpp
@@ -0,0 +1,92 @@
+// 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.
+
+#include "config.h"
+#include "core/rendering/RenderTheme.h"
+
+#include "core/dom/NodeRenderStyle.h"
+#include "core/frame/FrameView.h"
+#include "core/html/HTMLDocument.h"
+#include "core/html/HTMLElement.h"
+#include "core/page/FocusController.h"
+#include "core/page/Page.h"
+#include "core/rendering/style/RenderStyle.h"
+#include "core/testing/DummyPageHolder.h"
+#include "platform/graphics/Color.h"
+#include <gtest/gtest.h>
+
+using namespace blink;
+
+namespace {
+
+class RenderThemeTest : public ::testing::Test {
+
+protected:
+    virtual void SetUp() override;
+    HTMLDocument& document() const { return *m_document; }
+    void setHtmlInnerHTML(const char* htmlContent);
+
+private:
+    OwnPtr<DummyPageHolder> m_dummyPageHolder;
+    HTMLDocument* m_document;
+};
+
+void RenderThemeTest::SetUp()
+{
+    m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
+    m_document = toHTMLDocument(&m_dummyPageHolder->document());
+    ASSERT(m_document);
+}
+
+void RenderThemeTest::setHtmlInnerHTML(const char* htmlContent)
+{
+    document().documentElement()->setInnerHTML(String::fromUTF8(htmlContent), ASSERT_NO_EXCEPTION);
+    document().view()->updateLayoutAndStyleIfNeededRecursive();
+}
+
+inline Color outlineColor(Element* element)
+{
+    return element->renderStyle()->visitedDependentColor(CSSPropertyOutlineColor);
+}
+
+inline EBorderStyle outlineStyle(Element* element)
+{
+    return element->renderStyle()->outlineStyle();
+}
+
+TEST_F(RenderThemeTest, ChangeFocusRingColor)
+{
+    setHtmlInnerHTML("<span id=span tabIndex=0>Span</span>");
+
+    Element* span = document().getElementById(AtomicString("span"));
+    EXPECT_NE(nullptr, span);
+    EXPECT_NE(nullptr, span->renderer());
+
+    Color customColor = makeRGB(123, 145, 167);
+
+    // Checking unfocused style.
+    EXPECT_EQ(BNONE, outlineStyle(span));
+    EXPECT_NE(customColor, outlineColor(span));
+
+    // Do focus.
+    document().page()->focusController().setActive(true);
+    document().page()->focusController().setFocused(true);
+    span->focus();
+    document().view()->updateLayoutAndStyleIfNeededRecursive();
+
+    // Checking focused style.
+    EXPECT_NE(BNONE, outlineStyle(span));
+    EXPECT_NE(customColor, outlineColor(span));
+
+    // Change focus ring color.
+    RenderTheme::theme().setCustomFocusRingColor(customColor);
+    Page::platformColorsChanged();
+    document().view()->updateLayoutAndStyleIfNeededRecursive();
+
+    // Check that the focus ring color is updated.
+    EXPECT_NE(BNONE, outlineStyle(span));
+    EXPECT_EQ(customColor, outlineColor(span));
+}
+
+}