Fix getBBox() returning (0,0) bug when width or height is zero

LayoutTests/platform/linux/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt

Index: LayoutTests/platform/linux/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
diff --git a/LayoutTests/platform/win/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt b/LayoutTests/platform/linux/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
similarity index 88%
copy from LayoutTests/platform/win/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
copy to LayoutTests/platform/linux/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
index a0137f8e7e25debf02dfef22a4efa74847fda4a7..4df550833a64a430ddddc542ebcacc2e7e8ab4d7 100644
--- a/LayoutTests/platform/win/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/W3C-SVG-1.1/styling-css-02-b-expected.txt
@@ -2,7 +2,7 @@ layer at (0,0) size 480x360
   RenderView at (0,0) size 480x360
 layer at (0,0) size 480x360
   RenderSVGRoot {svg} at (0,0) size 480x360
-    RenderSVGContainer {g} at (40,2) size 350x278
+    RenderSVGContainer {g} at (40,2) size 350x279
       RenderSVGHiddenContainer {defs} at (0,0) size 0x0
       RenderSVGText {text} at (40,2) size 190x15 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 190x15
@@ -10,11 +10,11 @@ layer at (0,0) size 480x360
       RenderSVGText {text} at (40,24) size 338x15 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 338x15
           chunk 1 text run 1 at (40.00,36.00) startOffset 0 endOffset 64 width 338.00: "This tests id selectors: <rect id=\"one\" /> and the selector #one"
-      RenderSVGContainer {g} at (130,70) size 260x60
-        RenderSVGEllipse {circle} at (130,70) size 60x60 [fill={[type=SOLID] [color=#008000]}] [cx=160.00] [cy=100.00] [r=30.00]
+      RenderSVGContainer {g} at (129,69) size 261x62
+        RenderSVGEllipse {circle} at (129,69) size 62x62 [fill={[type=SOLID] [color=#008000]}] [cx=160.00] [cy=100.00] [r=30.00]
         RenderSVGRect {rect} at (220,80) size 60x40 [fill={[type=SOLID] [color=#FF0000]}] [x=220.00] [y=80.00] [width=60.00] [height=40.00]
         RenderSVGPath {polygon} at (300,70) size 90x50 [fill={[type=SOLID] [color=#008000]}] [points="300 100 320 120 340 110 360 120 390 90 340 70"]
-      RenderSVGContainer {g} at (40,152) size 350x128 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,150.00)}]
+      RenderSVGContainer {g} at (40,152) size 350x129 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,150.00)}]
         RenderSVGText {text} at (40,2) size 266x15 contains 1 chunk(s)
           RenderSVGInlineText {#text} at (0,0) size 266x15
             chunk 1 text run 1 at (40.00,14.00) startOffset 0 endOffset 51 width 266.00: "Circle should be red not green; rectangle still red"
@@ -24,8 +24,8 @@ layer at (0,0) size 480x360
         RenderSVGText {text} at (40,46) size 210x15 contains 1 chunk(s)
           RenderSVGInlineText {#text} at (0,0) size 210x15
             chunk 1 text run 1 at (40.00,58.00) startOffset 0 endOffset 39 width 210.00: "and the selector [transform=\"scale(2)\"]"
-        RenderSVGContainer {g} at (130,220) size 260x60
-          RenderSVGEllipse {circle} at (130,220) size 60x60 [transform={m=((2.00,0.00)(0.00,2.00)) t=(0.00,0.00)}] [fill={[type=SOLID] [color=#FF0000]}] [cx=80.00] [cy=50.00] [r=15.00]
+        RenderSVGContainer {g} at (129,219) size 261x62
+          RenderSVGEllipse {circle} at (129,219) size 62x62 [transform={m=((2.00,0.00)(0.00,2.00)) t=(0.00,0.00)}] [fill={[type=SOLID] [color=#FF0000]}] [cx=80.00] [cy=50.00] [r=15.00]
           RenderSVGRect {rect} at (220,230) size 60x40 [fill={[type=SOLID] [color=#FF0000]}] [x=220.00] [y=80.00] [width=60.00] [height=40.00]
           RenderSVGPath {polygon} at (300,220) size 90x50 [fill={[type=SOLID] [color=#008000]}] [points="300 100 320 120 340 110 360 120 390 90 340 70"]
     RenderSVGText {text} at (10,304) size 261x46 contains 1 chunk(s)