Expose WorkerGlobalScope interface in worker environment

Source/core/html/canvas/DataView.idl

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 [
-    GlobalContext=WindowAndWorker,
+    GlobalContext=Window&WorkerGlobalScope,
     CustomConstructor(ArrayBuffer buffer, optional unsigned long byteOffset, optional unsigned long byteLength),
     CustomToV8
 ] interface DataView : ArrayBufferView {
     // All these methods raise an exception if they would read or write beyond the end of the view.
 
     [RaisesException] byte getInt8(unsigned long byteOffset);
     [RaisesException] octet getUint8(unsigned long byteOffset);
 
     [StrictTypeChecking, RaisesException] short getInt16(unsigned long byteOffset, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] unsigned short getUint16(unsigned long byteOffset, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] long getInt32(unsigned long byteOffset, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] unsigned long getUint32(unsigned long byteOffset, optional boolean littleEndian);
 
     // Use custom code to handle NaN case for JSC.
     [StrictTypeChecking, RaisesException] float getFloat32(unsigned long byteOffset, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] double getFloat64(unsigned long byteOffset, optional boolean littleEndian);
 
     [RaisesException] void setInt8(unsigned long byteOffset, byte value);
     [RaisesException] void setUint8(unsigned long byteOffset, octet value);
 
     [StrictTypeChecking, RaisesException] void setInt16(unsigned long byteOffset, short value, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] void setUint16(unsigned long byteOffset, unsigned short value, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] void setInt32(unsigned long byteOffset, long value, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] void setUint32(unsigned long byteOffset, unsigned long value, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] void setFloat32(unsigned long byteOffset, float value, optional boolean littleEndian);
     [StrictTypeChecking, RaisesException] void setFloat64(unsigned long byteOffset, double value, optional boolean littleEndian);
 };