Add SkColor4f serialization

tests/SerializationTest.cpp

Index: tests/SerializationTest.cpp
diff --git a/tests/SerializationTest.cpp b/tests/SerializationTest.cpp
index bc2770ebda0d0a9e0143a408bf115e2ceb2f7bc8..f0412ba48c9b71e7c03c3a4aee4fdd2bdc83e031 100644
--- a/tests/SerializationTest.cpp
+++ b/tests/SerializationTest.cpp
@@ -104,6 +104,15 @@ template<> struct SerializationUtils<SkColor> {
     }
 };
 
+template<> struct SerializationUtils<SkColor4f> {
+    static void Write(SkWriteBuffer& writer, SkColor4f* data, uint32_t arraySize) {
+        writer.writeColor4fArray(data, arraySize);
+    }
+    static bool Read(SkValidatingReadBuffer& reader, SkColor4f* data, uint32_t arraySize) {
+        return reader.readColor4fArray(data, arraySize);
+    }
+};
+
 template<> struct SerializationUtils<int32_t> {
     static void Write(SkWriteBuffer& writer, int32_t* data, uint32_t arraySize) {
         writer.writeIntArray(data, arraySize);
@@ -225,7 +234,7 @@ static void TestArraySerialization(T* data, skiatest::Reporter* reporter) {
     // This should write the length (in 4 bytes) and the array
     REPORTER_ASSERT(reporter, (4 + kArraySize * sizeof(T)) == bytesWritten);
 
-    unsigned char dataWritten[1024];
+    unsigned char dataWritten[2048];
     writer.writeToMemory(dataWritten);
 
     // Make sure this fails when it should
@@ -494,6 +503,17 @@ DEF_TEST(Serialization, reporter) {
         TestArraySerialization(data, reporter);
     }
 
+    // Test readColor4fArray
+    {
+        SkColor4f data[kArraySize] = {
+            SkColor4f::FromColor(SK_ColorBLACK),
+            SkColor4f::FromColor(SK_ColorWHITE),
+            SkColor4f::FromColor(SK_ColorRED),
+            { 1.f, 2.f, 4.f, 8.f }
+        };
+        TestArraySerialization(data, reporter);
+    }
+
     // Test readIntArray
     {
         int32_t data[kArraySize] = { 1, 2, 4, 8 };