Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl

Index: third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl
diff --git a/third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl b/third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl
index d7f4d54b0c2f3b339e70f8d36cc54ee3beaf7f08..fbec9cceafacc4a28ba0418d078da6562b6374ca 100644
--- a/third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl
+++ b/third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl
@@ -16,10 +16,10 @@ class OriginTrialContext;
 // A class that stores dynamic tests for experimental features which can be
 // enabled through the experimental framework via API keys.
 
-class CORE_EXPORT OriginTrials final : public NoBaseWillBeGarbageCollected<OriginTrials>, public WillBeHeapSupplement<ExecutionContext> {
-WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(OriginTrials)
+class CORE_EXPORT OriginTrials final : public GarbageCollected<OriginTrials>, public HeapSupplement<ExecutionContext> {
+USING_GARBAGE_COLLECTED_MIXIN(OriginTrials)
 public:
-    OriginTrials(PassOwnPtrWillBeRawPtr<OriginTrialContext>);
+    OriginTrials(RawPtr<OriginTrialContext>);
 
     static const char* supplementName();
     static OriginTrials* from(ExecutionContext*);
@@ -41,7 +41,7 @@ private:
     {% endif %}
     {% endfor %}
 
-    OwnPtrWillBeMember<OriginTrialContext> m_originTrialContext;
+    Member<OriginTrialContext> m_originTrialContext;
 };
 
 } // namespace blink