Non-Oilpan Memory: Fix HTMLViewSourceDocument and WebLeakDetector.

Source/bindings/core/v8/V8PerIsolateData.h

Index: Source/bindings/core/v8/V8PerIsolateData.h
diff --git a/Source/bindings/core/v8/V8PerIsolateData.h b/Source/bindings/core/v8/V8PerIsolateData.h
index 68d8e31cfc9b61a07469f9f34abf9f6c89327639..ced752d0eed53b9496c5b28bf16b1dbc6c30bd44 100644
--- a/Source/bindings/core/v8/V8PerIsolateData.h
+++ b/Source/bindings/core/v8/V8PerIsolateData.h
@@ -112,6 +112,7 @@ public:
     v8::Local<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Local<v8::Value>);
 
     v8::Local<v8::Context> ensureScriptRegexpContext();
+    void clearScriptRegexpContext();
 
     const char* previousSamplingState() const { return m_previousSamplingState; }
     void setPreviousSamplingState(const char* name) { m_previousSamplingState = name; }