Split Gradient impl into separate classes

third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp

Index: third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
diff --git a/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp b/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
index 15e865745b7ee9132c25e35a5e7ef7e1f0fef61d..c4f7f50f4b351da0a1cf5d56e23d9ac7f03a0884 100644
--- a/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
+++ b/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
@@ -1848,16 +1848,21 @@ void BaseRenderingContext2D::trackDrawCall(DrawCallType callType,
 
     CanvasGradient* gradient = canvasStyle->getCanvasGradient();
     if (gradient) {
-      if (gradient->getGradient()->isRadial()) {
-        m_usageCounters.numRadialGradients++;
-        m_usageCounters.boundingBoxAreaFillType
-            [BaseRenderingContext2D::RadialGradientFillType] +=
-            boundingRectArea;
-      } else {
-        m_usageCounters.numLinearGradients++;
-        m_usageCounters.boundingBoxAreaFillType
-            [BaseRenderingContext2D::LinearGradientFillType] +=
-            boundingRectArea;
+      switch (gradient->getGradient()->getType()) {
+        case Gradient::Type::Linear:
+          m_usageCounters.numLinearGradients++;
+          m_usageCounters.boundingBoxAreaFillType
+              [BaseRenderingContext2D::LinearGradientFillType] +=
+              boundingRectArea;
+          break;
+        case Gradient::Type::Radial:
+          m_usageCounters.numRadialGradients++;
+          m_usageCounters.boundingBoxAreaFillType
+              [BaseRenderingContext2D::RadialGradientFillType] +=
+              boundingRectArea;
+          break;
+        default:
+          NOTREACHED();
       }
     } else if (canvasStyle->getCanvasPattern()) {
       m_usageCounters.numPatterns++;