Moved most of html lib generating scripts into tools.

sdk/lib/html/templates/html/impl/impl_WheelEvent.darttemplate

Index: sdk/lib/html/templates/html/impl/impl_WheelEvent.darttemplate
diff --git a/sdk/lib/html/templates/html/impl/impl_WheelEvent.darttemplate b/sdk/lib/html/templates/html/impl/impl_WheelEvent.darttemplate
deleted file mode 100644
index d660a21e2f5ac083a59791313fe4009a0fd021b6..0000000000000000000000000000000000000000
--- a/sdk/lib/html/templates/html/impl/impl_WheelEvent.darttemplate
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of html;
-
-/// @domName $DOMNAME
-class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-$!MEMBERS
-
-$if DART2JS
-  /** @domName WheelEvent.deltaY */
-  num get deltaY {
-    if (JS('bool', '#.deltaY !== undefined', this)) {
-      // W3C WheelEvent
-      return this._deltaY;
-    } else if (JS('bool', '#.wheelDelta !== undefined', this)) {
-      // Chrome and IE
-      return this._wheelDelta;
-    } else if (JS('bool', '#.detail !== undefined', this)) {
-      // Firefox
-
-      // Handle DOMMouseScroll case where it uses detail and the axis to
-      // differentiate.
-      if (JS('bool', '#.axis == MouseScrollEvent.VERTICAL_AXIS', this)) {
-        var detail = this._detail;
-        // Firefox is normally the number of lines to scale (normally 3)
-        // so multiply it by 40 to get pixels to move, matching IE & WebKit.
-        if (detail < 100) {
-          return detail * 40;
-        }
-        return detail;
-      }
-      return 0;
-    }
-    throw new UnsupportedError(
-        'deltaY is not supported');
-  }
-
-  /** @domName WheelEvent.deltaX */
-  num get deltaX {
-    if (JS('bool', '#.deltaX !== undefined', this)) {
-      // W3C WheelEvent
-      return this._deltaX;
-    } else if (JS('bool', '#.wheelDeltaX !== undefined', this)) {
-      // Chrome
-      return this._wheelDeltaX;
-    } else if (JS('bool', '#.detail !== undefined', this)) {
-      // Firefox and IE.
-      // IE will have detail set but will not set axis.
-
-      // Handle DOMMouseScroll case where it uses detail and the axis to
-      // differentiate.
-      if (JS('bool', '#.axis !== undefined && #.axis == MouseScrollEvent.HORIZONTAL_AXIS', this, this)) {
-        var detail = this._detail;
-        // Firefox is normally the number of lines to scale (normally 3)
-        // so multiply it by 40 to get pixels to move, matching IE & WebKit.
-        if (detail < 100) {
-          return detail * 40;
-        }
-        return detail;
-      }
-      return 0;
-    }
-    throw new UnsupportedError(
-        'deltaX is not supported');
-  }
-
-  int get deltaMode {
-    if (JS('bool', '!!#.deltaMode', this)) {
-      // If not available then we're poly-filling and doing pixel scroll.
-      return 0;
-    }
-    return this._deltaMode;
-  }
-
-  num get _deltaY => JS('num', '#.deltaY', this);
-  num get _deltaX => JS('num', '#.deltaX', this);
-  num get _wheelDelta => JS('num', '#.wheelDelta', this);
-  num get _wheelDeltaX => JS('num', '#.wheelDeltaX', this);
-  num get _detail => JS('num', '#.detail', this);
-  int get _deltaMode => JS('int', '#.deltaMode', this);
-
-$else
-  /** @domName WheelEvent.deltaX */
-  num get deltaX => $dom_wheelDeltaX;
-  /** @domName WheelEvent.deltaY */
-  num get deltaY => $dom_wheelDeltaY;
-  /** @domName WheelEvent.deltaMode */
-  int get deltaMode => 0;
-
-$endif
-}