Enable RGBA_4444 in GpuRasterBufferProvider

cc/raster/raster_buffer_provider_unittest.cc

Index: cc/raster/raster_buffer_provider_unittest.cc
diff --git a/cc/raster/raster_buffer_provider_unittest.cc b/cc/raster/raster_buffer_provider_unittest.cc
index 50eb375be79b53df31b981a2d026cbe1f41c2a45..8e35a3d0bca1c67d0cb0dcc8568e05dd237e8828 100644
--- a/cc/raster/raster_buffer_provider_unittest.cc
+++ b/cc/raster/raster_buffer_provider_unittest.cc
@@ -182,13 +182,15 @@ class RasterBufferProviderTest
         Create3dResourceProvider();
         raster_buffer_provider_ = base::MakeUnique<GpuRasterBufferProvider>(
             context_provider_.get(), worker_context_provider_.get(),
-            resource_provider_.get(), false, 0, false);
+            resource_provider_.get(), false, 0,
+            PlatformColor::BestTextureFormat(), false);
         break;
       case RASTER_BUFFER_PROVIDER_TYPE_ASYNC_GPU:
         Create3dResourceProvider();
         raster_buffer_provider_ = base::MakeUnique<GpuRasterBufferProvider>(
             context_provider_.get(), worker_context_provider_.get(),
-            resource_provider_.get(), false, 0, true);
+            resource_provider_.get(), false, 0,
+            PlatformColor::BestTextureFormat(), true);
         break;
       case RASTER_BUFFER_PROVIDER_TYPE_BITMAP:
         CreateSoftwareResourceProvider();