Revert of Allow frames to be free'd even for static images

Source/platform/graphics/ImageFrameGeneratorTest.cpp

Index: Source/platform/graphics/ImageFrameGeneratorTest.cpp
diff --git a/Source/platform/graphics/ImageFrameGeneratorTest.cpp b/Source/platform/graphics/ImageFrameGeneratorTest.cpp
index 80ea475e5243bf1c389d52187b588561c5480f9e..1f74b5b34a7fc0bbd09163bc9959a530fb866056 100644
--- a/Source/platform/graphics/ImageFrameGeneratorTest.cpp
+++ b/Source/platform/graphics/ImageFrameGeneratorTest.cpp
@@ -406,8 +406,8 @@
 TEST_F(ImageFrameGeneratorTest, frameHasAlpha)
 {
     setFrameStatus(ImageFrame::FramePartial);
-    ImageDecodingStore::instance()->unlockCache(m_generator.get(), m_generator->decodeAndScale(fullSize(), 0));
-    EXPECT_TRUE(m_generator->hasAlpha(0));
+    ImageDecodingStore::instance()->unlockCache(m_generator.get(), m_generator->decodeAndScale(fullSize(), 1));
+    EXPECT_TRUE(m_generator->hasAlpha(1));
 
     ImageDecoder* tempDecoder = 0;
     EXPECT_TRUE(ImageDecodingStore::instance()->lockDecoder(m_generator.get(), fullSize(), &tempDecoder));
@@ -416,8 +416,8 @@
     ImageDecodingStore::instance()->unlockDecoder(m_generator.get(), tempDecoder);
 
     setFrameStatus(ImageFrame::FrameComplete);
-    ImageDecodingStore::instance()->unlockCache(m_generator.get(), m_generator->decodeAndScale(fullSize(), 0));
-    EXPECT_FALSE(m_generator->hasAlpha(0));
+    ImageDecodingStore::instance()->unlockCache(m_generator.get(), m_generator->decodeAndScale(fullSize(), 1));
+    EXPECT_FALSE(m_generator->hasAlpha(1));
 }
 
 namespace {