[CSS Typed OM] Make CSSRotation attributes mutable.

third_party/WebKit/Source/core/css/cssom/CSSRotation.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/cssom/CSSRotation.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 
@@ skipping 79 matching lines @@
     case CSSValueRotateX:
     case CSSValueRotateY:
     case CSSValueRotateZ:
       return FromCSSRotateXYZ(value);
     default:
       NOTREACHED();
       return nullptr;
   }
 }
 
+void CSSRotation::setAngle(CSSNumericValue* angle,
+                           ExceptionState& exception_state) {
+  if (angle->GetType() != CSSStyleValue::StyleValueType::kAngleType) {
+    exception_state.ThrowTypeError("Must pass an angle to CSSRotation");
+    return;
+  }
+  if (angle->IsCalculated()) {
+    exception_state.ThrowTypeError("Calculated angles are not supported yet");
+    return;
+  }
+  angle_ = angle;
+}
+
 CSSFunctionValue* CSSRotation::ToCSSValue() const {
   return nullptr;
   // TODO(meade): Re-implement this when we finish rewriting number/length
   // types.
   // CSSFunctionValue* result =
   //     CSSFunctionValue::Create(is2d_ ? CSSValueRotate : CSSValueRotate3d);
   // if (!is2d_) {
   //   result->Append(
   //      *CSSPrimitiveValue::Create(x_, CSSPrimitiveValue::UnitType::kNumber));
   //   result->Append(
   //      *CSSPrimitiveValue::Create(y_, CSSPrimitiveValue::UnitType::kNumber));
   //   result->Append(
   //      *CSSPrimitiveValue::Create(z_, CSSPrimitiveValue::UnitType::kNumber));
   // }
   // result->Append(*CSSPrimitiveValue::Create(angle_->Value(),
   //                                           angle_->Unit()));
   // return result;
 }
 
 }  // namespace blink