Adding size parameter to read array functions

tests/SerializationTest.cpp

+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkOrderedWriteBuffer.h"
+#include "SkValidatingReadBuffer.h"
+#include "Test.h"
+
+static void Tests(skiatest::Reporter* reporter) {
+    static const uint32_t arraySize = 512;
+    unsigned char data[arraySize] = {0};
+    SkOrderedWriteBuffer writer(1024);
+    writer.setFlags(SkOrderedWriteBuffer::kValidation_Flag);
+    writer.writeByteArray(data, arraySize);
+    uint32_t bytesWritten = writer.bytesWritten();
+    // This should write the length (in 4 bytes) and the array
+    REPORTER_ASSERT(reporter, (4 + arraySize) == bytesWritten);
+    
+    unsigned char dataWritten[1024];
+    writer.writeToMemory(dataWritten);
+
+    // Make sure this fails when it should
+    SkValidatingReadBuffer buffer(dataWritten, bytesWritten);
+    unsigned char dataRead[arraySize];
+    size_t bytesRead = buffer.readByteArray(dataRead, 256);
+    // This should have failed, since 256 < sizeInBytes
+    REPORTER_ASSERT(reporter, bytesRead == 0);
+
+    // Make sure this succeeds when it should
+    SkValidatingReadBuffer buffer2(dataWritten, bytesWritten);
+    bytesRead = buffer2.readByteArray(dataRead, arraySize);
+    // This should have succeeded, since there are enough bytes to read this
+    REPORTER_ASSERT(reporter, bytesRead == arraySize);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("Serialization", SerializationClass, Tests)