Have convertNPVariantToV8Object() use the isolate it is given

convertNPVariantToV8Object() in V8NPUtils is given a v8::Isolate but
fails to use it in several instances.

R=haraken
BUG=

Review URL: https://chromiumcodereview.appspot.com/23993004

git-svn-id: svn://svn.chromium.org/blink/trunk@157520 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Support Canvas2D resetTransform method.

Canvas v5 supports resetTransform.
http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-currenttransform

BUG=277110

TEST=fast/canvas/canvas-resetTransform.html

Review URL: https://chromiumcodereview.appspot.com/23531011

git-svn-id: svn://svn.chromium.org/blink/trunk@157521 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove WTF::String ConstructFromLiteralTag

Remove WTF::String ConstructFromLiteralTag (and the corresponding constructor) to simplify WTF::String class and as it does not have callers.

Review URL: https://chromiumcodereview.appspot.com/23647012

git-svn-id: svn://svn.chromium.org/blink/trunk@157522 bbb929c8-8fbe-4397-9dbb-9b2b20218538