Bug 781731 - Fix passing of text bounds to AdjustedTarget in order to limit the size of the temporary target. r=Bas

content/canvas/src/nsCanvasRenderingContext2DAzure.cpp

@@ -3102,8 +3102,9 @@ struct NS_STACK_CLASS nsCanvasBidiProcessorAzure : public nsBidiPresUtils::BidiP
       buffer.mGlyphs = &glyphBuf.front();
       buffer.mNumGlyphs = glyphBuf.size();
 
+      Rect bounds(mBoundingBox.x, mBoundingBox.y, mBoundingBox.width, mBoundingBox.height);
       if (mOp == nsCanvasRenderingContext2DAzure::TEXT_DRAW_OPERATION_FILL) {
-        AdjustedTarget(mCtx)->
+        AdjustedTarget(mCtx, &bounds)->
           FillGlyphs(scaledFont, buffer,
                      CanvasGeneralPattern().
                        ForStyle(mCtx, nsCanvasRenderingContext2DAzure::STYLE_FILL, mCtx->mTarget),
@@ -3112,7 +3113,7 @@ struct NS_STACK_CLASS nsCanvasBidiProcessorAzure : public nsBidiPresUtils::BidiP
         RefPtr<Path> path = scaledFont->GetPathForGlyphs(buffer, mCtx->mTarget);
 
         const ContextState& state = *mState;
-        AdjustedTarget(mCtx)->
+        AdjustedTarget(mCtx, &bounds)->
           Stroke(path, CanvasGeneralPattern().
                    ForStyle(mCtx, nsCanvasRenderingContext2DAzure::STYLE_STROKE, mCtx->mTarget),
                  StrokeOptions(state.lineWidth, state.lineJoin,