[Impeller] updated gaussian blur tests to use device private textures

Author: gaaclarke

impeller/entity/contents/filters/directional_gaussian_blur_filter_contents_unittests.cc

@@ -89,6 +89,7 @@ TEST_P(DirectionalGaussianBlurFilterContentsTest, RenderNoCoverage) {
 TEST_P(DirectionalGaussianBlurFilterContentsTest,
        RenderCoverageMatchesGetCoverage) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };

impeller/entity/contents/filters/gaussian_blur_filter_contents_unittests.cc

@@ -70,6 +70,7 @@ TEST(GaussianBlurFilterContentsTest, CoverageWithSigma) {
 
 TEST_P(GaussianBlurFilterContentsTest, CoverageWithTexture) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };
@@ -88,6 +89,7 @@ TEST_P(GaussianBlurFilterContentsTest, CoverageWithTexture) {
 
 TEST_P(GaussianBlurFilterContentsTest, CoverageWithEffectTransform) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };
@@ -115,6 +117,7 @@ TEST(GaussianBlurFilterContentsTest, FilterSourceCoverage) {
 
 TEST_P(GaussianBlurFilterContentsTest, RenderCoverageMatchesGetCoverage) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };
@@ -146,6 +149,7 @@ TEST_P(GaussianBlurFilterContentsTest, RenderCoverageMatchesGetCoverage) {
 TEST_P(GaussianBlurFilterContentsTest,
        RenderCoverageMatchesGetCoverageTranslate) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };
@@ -178,6 +182,7 @@ TEST_P(GaussianBlurFilterContentsTest,
 TEST_P(GaussianBlurFilterContentsTest,
        RenderCoverageMatchesGetCoverageRotated) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(400, 300),
   };
@@ -210,6 +215,7 @@ TEST_P(GaussianBlurFilterContentsTest,
 
 TEST_P(GaussianBlurFilterContentsTest, CalculateUVsSimple) {
   TextureDescriptor desc = {
+      .storage_mode = StorageMode::kDevicePrivate,
       .format = PixelFormat::kB8G8R8A8UNormInt,
       .size = ISize(100, 100),
   };