Implement API for accessing fonts installed locally on the system.

third_party/WebKit/Source/core/css/FontFace.cpp

Index: third_party/WebKit/Source/core/css/FontFace.cpp
diff --git a/third_party/WebKit/Source/core/css/FontFace.cpp b/third_party/WebKit/Source/core/css/FontFace.cpp
index 11a1c2a6f9ed5d1f3342abfad4e09bb9532d3c73..5deabdf3c2d591957a06ffe7a1d66ded8ea0d382 100644
--- a/third_party/WebKit/Source/core/css/FontFace.cpp
+++ b/third_party/WebKit/Source/core/css/FontFace.cpp
@@ -649,4 +649,11 @@ bool FontFace::hasPendingActivity() const
     return m_status == Loading && executionContext() && !executionContext()->activeDOMObjectsAreStopped();
 }
 
+ScriptPromise FontFace::binaryData(ScriptState* scriptState) const
+{
+    // TODO(dhnishi): Given a loaded font, we may be able to get the binary data
+    // out of the FontPlatformData.
+    return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
+}
+
 } // namespace blink