Adding unittest for blink gc dump provider.

Source/platform/heap/BlinkGCMemoryDumpProviderTest.cpp

Index: Source/platform/heap/BlinkGCMemoryDumpProviderTest.cpp
diff --git a/Source/platform/heap/BlinkGCMemoryDumpProviderTest.cpp b/Source/platform/heap/BlinkGCMemoryDumpProviderTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0b4bd2ce7a0e9c8251d51e29d5cca7fe6509814b
--- /dev/null
+++ b/Source/platform/heap/BlinkGCMemoryDumpProviderTest.cpp
@@ -0,0 +1,24 @@
+// Copyright 2015 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 "platform/heap/BlinkGCMemoryDumpProvider.h"
+
+#include "public/platform/Platform.h"
+#include "public/platform/WebProcessMemoryDump.h"
+
+#include <gtest/gtest.h>
+
+namespace blink {
+
+TEST(BlinkGCDumpProviderTest, MemoryDump)
+{
+    WebProcessMemoryDump* dump  = Platform::current()->createProcessMemoryDump();
+    ASSERT(dump);
+    BlinkGCMemoryDumpProvider::instance()->onMemoryDump(dump);
+    ASSERT(dump->getMemoryAllocatorDump("blink_gc"));
+    ASSERT(dump->getMemoryAllocatorDump("blink_gc/allocated_objects"));
+}
+
+} // namespace blink