Migrate SkImage static methods to SkImages namespace

Will need to land after
https://skia-review.googlesource.com/c/skia/+/648297
lands and rolls

Change-Id: Ie2ecb8f74dd52fcdd35e7cf9c311e8ed94781a07
Bug: skbug.com/13983
diff --git a/libs/hwui/tests/unit/AutoBackendTextureReleaseTests.cpp b/libs/hwui/tests/unit/AutoBackendTextureReleaseTests.cpp
index 138b3efd..b8b3f0a 100644
--- a/libs/hwui/tests/unit/AutoBackendTextureReleaseTests.cpp
+++ b/libs/hwui/tests/unit/AutoBackendTextureReleaseTests.cpp
@@ -46,7 +46,7 @@
 
     EXPECT_EQ(1, TestUtils::getUsageCount(textureRelease));
 
-    // SkImage::MakeFromTexture should fail if given null GrDirectContext.
+    // SkImages::BorrowTextureFrom should fail if given null GrDirectContext.
     textureRelease->makeImage(buffer, HAL_DATASPACE_UNKNOWN, /*context = */ nullptr);
 
     EXPECT_EQ(1, TestUtils::getUsageCount(textureRelease));