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

cc/output/filter_operations.cc

Index: cc/output/filter_operations.cc
diff --git a/cc/output/filter_operations.cc b/cc/output/filter_operations.cc
index 24208418026390d2127183481018a7a9b6265eb3..e3b993b8cc00a8652a8733acf2b88e51b61112ad 100644
--- a/cc/output/filter_operations.cc
+++ b/cc/output/filter_operations.cc
@@ -86,10 +86,20 @@ bool FilterOperations::HasFilterThatMovesPixels() const {
       case FilterOperation::DROP_SHADOW:
       case FilterOperation::ZOOM:
         return true;
-      default:
-        break;
+      case FilterOperation::OPACITY:
+      case FilterOperation::COLOR_MATRIX:
+      case FilterOperation::GRAYSCALE:
+      case FilterOperation::SEPIA:
+      case FilterOperation::SATURATE:
+      case FilterOperation::HUE_ROTATE:
+      case FilterOperation::INVERT:
+      case FilterOperation::BRIGHTNESS:
+      case FilterOperation::CONTRAST:
+      case FilterOperation::SATURATING_BRIGHTNESS:
+        return false;
     }
   }
+  NOTREACHED();
   return false;
 }
 
@@ -104,13 +114,26 @@ bool FilterOperations::HasFilterThatAffectsOpacity() const {
         return true;
       case FilterOperation::COLOR_MATRIX: {
         const SkScalar* matrix = op.matrix();
-        return matrix[15] || matrix[16] || matrix[17] || matrix[18] != 1 ||
-               matrix[19];
-      }
-      default:
+        if (matrix[15] ||
+            matrix[16] ||
+            matrix[17] ||
+            matrix[18] != 1 ||
+            matrix[19])
+          return true;
         break;
+      }
+      case FilterOperation::GRAYSCALE:
+      case FilterOperation::SEPIA:
+      case FilterOperation::SATURATE:
+      case FilterOperation::HUE_ROTATE:
+      case FilterOperation::INVERT:
+      case FilterOperation::BRIGHTNESS:
+      case FilterOperation::CONTRAST:
+      case FilterOperation::SATURATING_BRIGHTNESS:
+        return false;
     }
   }
+  NOTREACHED();
   return false;
 }