cc: Remove unnecessary "default" cases from switch statements.

cc/output/filter_operation.cc

 // Copyright 2013 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 <algorithm>
 
 #include "base/values.h"
 #include "cc/base/math_util.h"
 #include "cc/output/filter_operation.h"
 #include "third_party/skia/include/core/SkMath.h"
@@ skipping 129 matching lines @@
     case FilterOperation::COLOR_MATRIX: {
       SkScalar matrix[20];
       memset(matrix, 0, 20 * sizeof(SkScalar));
       matrix[0] = matrix[6] = matrix[12] = matrix[18] = 1.f;
       return FilterOperation::CreateColorMatrixFilter(matrix);
     }
     case FilterOperation::ZOOM:
       return FilterOperation::CreateZoomFilter(1.f, 0);
     case FilterOperation::SATURATING_BRIGHTNESS:
       return FilterOperation::CreateSaturatingBrightnessFilter(0.f);
-    default:
-      NOTREACHED();
-      return FilterOperation::CreateEmptyFilter();
   }
+  NOTREACHED();
+  return FilterOperation::CreateEmptyFilter();
 }
 
 static float ClampAmountForFilterType(float amount,
                                       FilterOperation::FilterType type) {
   switch (type) {
     case FilterOperation::GRAYSCALE:
     case FilterOperation::SEPIA:
     case FilterOperation::INVERT:
     case FilterOperation::OPACITY:
       return MathUtil::ClampToRange(amount, 0.f, 1.f);
     case FilterOperation::SATURATE:
     case FilterOperation::BRIGHTNESS:
     case FilterOperation::CONTRAST:
     case FilterOperation::BLUR:
     case FilterOperation::DROP_SHADOW:
       return std::max(amount, 0.f);
     case FilterOperation::ZOOM:
       return std::max(amount, 1.f);
     case FilterOperation::HUE_ROTATE:
     case FilterOperation::SATURATING_BRIGHTNESS:
       return amount;
     case FilterOperation::COLOR_MATRIX:
-    default:
       NOTREACHED();
       return amount;
   }
+  NOTREACHED();
+  return amount;
 }
 
 // static
 FilterOperation FilterOperation::Blend(const FilterOperation* from,
                                        const FilterOperation* to,
                                        double progress) {
   FilterOperation blended_filter = FilterOperation::CreateEmptyFilter();
 
   if (!from && !to)
     return blended_filter;
@@ skipping 58 matching lines @@
     }
     case FilterOperation::ZOOM:
       value->SetDouble("amount", amount_);
       value->SetDouble("inset", zoom_inset_);
       break;
   }
   return value.PassAs<base::Value>();
 }
 
 }  // namespace cc