Add PERSISTENT_MAP usage for GpuMemoryBuffers.

content/common/gpu/gpu_memory_buffer_factory_unittest.cc

Index: content/common/gpu/gpu_memory_buffer_factory_unittest.cc
diff --git a/content/common/gpu/gpu_memory_buffer_factory_unittest.cc b/content/common/gpu/gpu_memory_buffer_factory_unittest.cc
index f9dc7e1a3963fbe9470581c65ca12d0fe688dcc1..81dd2c592cfe5dd7f42194904acc2189890f266c 100644
--- a/content/common/gpu/gpu_memory_buffer_factory_unittest.cc
+++ b/content/common/gpu/gpu_memory_buffer_factory_unittest.cc
@@ -45,7 +45,16 @@ TEST_P(GpuMemoryBufferFactoryTest, CreateAndDestroy) {
 std::vector<gfx::GpuMemoryBufferType>
 GetSupportedGpuMemoryBufferFactoryTypes() {
   std::vector<gfx::GpuMemoryBufferType> supported_types;
-  GpuMemoryBufferFactory::GetSupportedTypes(&supported_types);
+  GpuMemoryBufferFactory::GetSupportedTypes(gfx::GpuMemoryBuffer::MAP,
+                                            &supported_types);
+
+  std::vector<gfx::GpuMemoryBufferType> persistent_supported_types;
+  GpuMemoryBufferFactory::GetSupportedTypes(
+      gfx::GpuMemoryBuffer::PERSISTENT_MAP, &persistent_supported_types);
+  supported_types.insert(supported_types.end(),
+                         persistent_supported_types.begin(),
+                         persistent_supported_types.end());
+
   return supported_types;
 }