[gow] (2) drawImage() and createPattern() no longer throw an exceptio…

…n if the image isn't ready.

git-svn-id: http://svn.whatwg.org/webapps@3685 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

  <!-- drawImage() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  <code><a href=#htmlimageelement>HTMLImageElement</a></code> object whose <code title=dom-img-complete><a href=#dom-img-complete>complete</a></code> attribute is false, then
  the implementation must raise an <code><a href=#invalid_state_err>INVALID_STATE_ERR</a></code>
  exception.</p>
  <!-- drawImage() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  <code><a href=#htmlimageelement>HTMLImageElement</a></code> object whose <code title=dom-img-complete><a href=#dom-img-complete>complete</a></code> attribute is false, or
  if the <var title="">image</var> argument is an
  <code><a href=#htmlvideoelement>HTMLVideoElement</a></code> object whose <code title=dom-media-readyState><a href=#dom-media-readystate>readyState</a></code> attribute is either
  <code title=dom-media-HAVE_NOTHING><a href=#dom-media-have_nothing>HAVE_NOTHING</a></code> or <code title=dom-media-HAVE_METADATA><a href=#dom-media-have_metadata>HAVE_METADATA</a></code>, then the
  implementation must raise an <code><a href=#invalid_state_err>INVALID_STATE_ERR</a></code>
  exception.</p>
  implementation must return null.</p>
  <!-- drawImage() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  <!-- createPattern() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  <code><a href=#htmlimageelement>HTMLImageElement</a></code> object whose <code title=dom-img-complete><a href=#dom-img-complete>complete</a></code> attribute is false, then
  the implementation must raise an <code><a href=#invalid_state_err>INVALID_STATE_ERR</a></code>
  exception.</p>
  <!-- createPattern() has an equivalent paragraph -->

  <!-- handled by a later paragraph
  <p>If the <var title="">image</var> argument is an
  <code>HTMLCanvasElement</code> object with either a horizontal
  dimension or a vertical dimension equal to zero, then the
  implementation must raise an <code>INVALID_SIZE_ERR</code>
  exception.</p>
  -->
  <!-- createPattern() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  <code><a href=#htmlimageelement>HTMLImageElement</a></code> object whose <code title=dom-img-complete><a href=#dom-img-complete>complete</a></code> attribute is false, or
  if the <var title="">image</var> argument is an
  <code><a href=#htmlvideoelement>HTMLVideoElement</a></code> object whose <code title=dom-media-readyState><a href=#dom-media-readystate>readyState</a></code> attribute is either
  <code title=dom-media-HAVE_NOTHING><a href=#dom-media-have_nothing>HAVE_NOTHING</a></code> or <code title=dom-media-HAVE_METADATA><a href=#dom-media-have_metadata>HAVE_METADATA</a></code>, then the
  implementation must raise an <code><a href=#invalid_state_err>INVALID_STATE_ERR</a></code>
  exception.</p>
  implementation must return without drawing anything.</p>
  <!-- createPattern() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an

source

  <p>If the <var title="">image</var> argument is an
  <code>HTMLImageElement</code> object whose <code
  title="dom-img-complete">complete</code> attribute is false, then
  the implementation must raise an <code>INVALID_STATE_ERR</code>
  exception.</p>
  <!-- drawImage() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  title="dom-img-complete">complete</code> attribute is false, or
  if the <var title="">image</var> argument is an
  <code>HTMLVideoElement</code> object whose <code
  title="dom-media-readyState">readyState</code> attribute is either
  <code title="dom-media-HAVE_NOTHING">HAVE_NOTHING</code> or <code
  title="dom-media-HAVE_METADATA">HAVE_METADATA</code>, then the
  implementation must raise an <code>INVALID_STATE_ERR</code>
  exception.</p>
  implementation must return null.</p>
  <!-- drawImage() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an

  <p>If the <var title="">image</var> argument is an
  <code>HTMLImageElement</code> object whose <code
  title="dom-img-complete">complete</code> attribute is false, then
  the implementation must raise an <code>INVALID_STATE_ERR</code>
  exception.</p>
  <!-- createPattern() has an equivalent paragraph -->

  <!-- handled by a later paragraph
  <p>If the <var title="">image</var> argument is an
  <code>HTMLCanvasElement</code> object with either a horizontal
  dimension or a vertical dimension equal to zero, then the
  implementation must raise an <code>INVALID_SIZE_ERR</code>
  exception.</p>
  -->
  <!-- createPattern() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an
  title="dom-img-complete">complete</code> attribute is false, or
  if the <var title="">image</var> argument is an
  <code>HTMLVideoElement</code> object whose <code
  title="dom-media-readyState">readyState</code> attribute is either
  <code title="dom-media-HAVE_NOTHING">HAVE_NOTHING</code> or <code
  title="dom-media-HAVE_METADATA">HAVE_METADATA</code>, then the
  implementation must raise an <code>INVALID_STATE_ERR</code>
  exception.</p>
  implementation must return without drawing anything.</p>
  <!-- createPattern() has an equivalent paragraph -->

  <p>If the <var title="">image</var> argument is an