Revert of Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/core/SkShader.cpp

Index: src/core/SkShader.cpp
diff --git a/src/core/SkShader.cpp b/src/core/SkShader.cpp
index 816d6fd3298c0142cd9102d056961adcc11692cd..39e8ed35f5cd516185ef8c6f85cebbb99d4bc6c4 100644
--- a/src/core/SkShader.cpp
+++ b/src/core/SkShader.cpp
@@ -45,6 +45,17 @@
         fLocalMatrix.reset();
     }
 }
+
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkShader::SkShader(SkReadBuffer& buffer) : INHERITED(buffer) {
+    inc_shader_counter();
+    if (buffer.readBool()) {
+        buffer.readMatrix(&fLocalMatrix);
+    } else {
+        fLocalMatrix.reset();
+    }
+}
+#endif
 
 SkShader::~SkShader() {
     dec_shader_counter();
@@ -260,6 +271,12 @@
     return SkColorGetA(fColor) == 255;
 }
 
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkColorShader::SkColorShader(SkReadBuffer& b) : INHERITED(b) {
+    fColor = b.readColor();
+}
+#endif
+
 SkFlattenable* SkColorShader::CreateProc(SkReadBuffer& buffer) {
     return SkNEW_ARGS(SkColorShader, (buffer.readColor()));
 }