Support for json media types as (non-image) mime types.

Source/core/dom/DOMImplementationTest.cpp

 /*
  * Copyright (c) 2013, Opera Software ASA. All rights reserved.
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  *    notice, this list of conditions and the following disclaimer.
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  *    from this software without specific prior written permission.
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-#ifndef LengthPoint_h
-#define LengthPoint_h
+#include "config.h"
+#include "core/dom/DOMImplementation.h"
 
-#include "platform/Length.h"
+#include "wtf/text/WTFString.h"
+#include <gtest/gtest.h>
 
-namespace WebCore {
+using namespace WebCore;
 
-struct LengthPoint {
-public:
-    LengthPoint()
-    {
-    }
+namespace {
 
-    LengthPoint(Length x, Length y)
-        : m_x(x)
-        , m_y(y)
-    {
-    }
+TEST(DOMImplementationTest, TextMIMEType)
+{
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("text/plain"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("text/javascript"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/json"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/+json"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/x-javascript-like+json;a=2;c=4"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/javascript"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/x-custom+json;b=3"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/x-custom+json"));
+    // Outside of RFC-2045 grammar, but robustly accept/allow.
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/x-what+json;"));
+    EXPECT_TRUE(DOMImplementation::isTextMIMEType("application/json;"));
 
-    bool operator==(const LengthPoint& o) const { return m_x == o.m_x && m_y == o.m_y; }
-    bool operator!=(const LengthPoint& o) const { return m_x != o.m_x || m_y != o.m_y; }
+    EXPECT_FALSE(DOMImplementation::isTextMIMEType("application/x-custom;a=a+json"));
+    EXPECT_FALSE(DOMImplementation::isTextMIMEType("text/html"));
+    EXPECT_FALSE(DOMImplementation::isTextMIMEType("text/xml"));
+    EXPECT_FALSE(DOMImplementation::isTextMIMEType("text/xsl"));
+}
 
-    void setX(Length x) { m_x = x; }
-    Length x() const { return m_x; }
-
-    void setY(Length y) { m_y = y; }
-    Length y() const { return m_y; }
-
-private:
-    Length m_x;
-    Length m_y;
-};
-
-} // namespace WebCore
-
-#endif // LengthPoint_h
+}