Replace ASSERT with DCHECK in core/svg/

third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp b/third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp
index 1ccd419b4517b1fa1b94e96f8053f632f1cde6b4..c40de28775b766b18e2e82f57e27be61f2e01f5c 100644
--- a/third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp
@@ -64,8 +64,8 @@ bool SVGFEDiffuseLightingElement::setFilterEffectAttribute(
 
   if (attrName == SVGNames::lighting_colorAttr) {
     LayoutObject* layoutObject = this->layoutObject();
-    ASSERT(layoutObject);
-    ASSERT(layoutObject->style());
+    DCHECK(layoutObject);
+    DCHECK(layoutObject->style());
     return diffuseLighting->setLightingColor(
         layoutObject->style()->svgStyle().lightingColor());
   }
@@ -80,9 +80,9 @@ bool SVGFEDiffuseLightingElement::setFilterEffectAttribute(
       const_cast<LightSource*>(diffuseLighting->lightSource());
   const SVGFELightElement* lightElement =
       SVGFELightElement::findLightElement(*this);
-  ASSERT(lightSource);
-  ASSERT(lightElement);
-  ASSERT(effect->getFilter());
+  DCHECK(lightSource);
+  DCHECK(lightElement);
+  DCHECK(effect->getFilter());
 
   if (attrName == SVGNames::azimuthAttr)
     return lightSource->setAzimuth(
@@ -144,13 +144,13 @@ FilterEffect* SVGFEDiffuseLightingElement::build(
     Filter* filter) {
   FilterEffect* input1 = filterBuilder->getEffectById(
       AtomicString(m_in1->currentValue()->value()));
-  ASSERT(input1);
+  DCHECK(input1);
 
   LayoutObject* layoutObject = this->layoutObject();
   if (!layoutObject)
     return nullptr;
 
-  ASSERT(layoutObject->style());
+  DCHECK(layoutObject->style());
   Color color = layoutObject->style()->svgStyle().lightingColor();
 
   const SVGFELightElement* lightNode =