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

LayoutTests/platform/linux/svg/text/text-align-05-b-expected.txt

Index: LayoutTests/platform/linux/svg/text/text-align-05-b-expected.txt
diff --git a/LayoutTests/platform/win/svg/text/text-align-05-b-expected.txt b/LayoutTests/platform/linux/svg/text/text-align-05-b-expected.txt
similarity index 91%
copy from LayoutTests/platform/win/svg/text/text-align-05-b-expected.txt
copy to LayoutTests/platform/linux/svg/text/text-align-05-b-expected.txt
index c216614ac4d49a2d51291b23660a72dc94d14deb..2a7265928d215f3fab672d0535de107dd01c36b4 100644
--- a/LayoutTests/platform/win/svg/text/text-align-05-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/text/text-align-05-b-expected.txt
@@ -8,8 +8,8 @@ layer at (0,0) size 800x600
           chunk 1 text run 1 at (5.00,40.00) startOffset 0 endOffset 29 width 470.40: "Test 'text-anchor' (vertical)"
       RenderSVGContainer {g} at (252,79) size 196x457
         RenderSVGContainer {g} at (252,79) size 196x457 [transform={m=((1.00,0.00)(0.00,1.00)) t=(160.00,150.00)}]
-          RenderSVGContainer {g} at (252,245) size 29x291
-            RenderSVGEllipse {circle} at (261,245) size 11x10 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGContainer {g} at (252,244) size 29x292
+            RenderSVGEllipse {circle} at (260,244) size 13x12 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-9,0) size 18x172 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 17x172
                 chunk 1 (vertical) text run 1 at (-10.50,0.00) startOffset 0 endOffset 1 height 34.20: "s"
@@ -18,7 +18,7 @@ layer at (0,0) size 800x600
                 chunk 1 (vertical) text run 4 at (-10.50,102.60) startOffset 3 endOffset 4 height 34.20: "r"
                 chunk 1 (vertical) text run 5 at (-10.50,136.80) startOffset 4 endOffset 5 height 34.20: "t"
           RenderSVGContainer {g} at (330,79) size 40x343 [transform={m=((1.00,0.00)(0.00,1.00)) t=(50.00,0.00)}]
-            RenderSVGEllipse {circle} at (345,245) size 10x10 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+            RenderSVGEllipse {circle} at (344,244) size 12x12 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-12,-103) size 24x206 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 24x206
                 chunk 1 (middle anchor, vertical) text run 1 at (-10.50,-102.60) startOffset 0 endOffset 1 height 34.20: "m"
@@ -27,8 +27,8 @@ layer at (0,0) size 800x600
                 chunk 1 (middle anchor, vertical) text run 4 at (-10.50,0.00) startOffset 3 endOffset 4 height 34.20: "d"
                 chunk 1 (middle anchor, vertical) text run 5 at (-10.50,34.20) startOffset 4 endOffset 5 height 34.20: "l"
                 chunk 1 (middle anchor, vertical) text run 6 at (-10.50,68.40) startOffset 5 endOffset 6 height 34.20: "e"
-          RenderSVGContainer {g} at (419,79) size 29x176 [transform={m=((1.00,0.00)(0.00,1.00)) t=(100.00,0.00)}]
-            RenderSVGEllipse {circle} at (428,245) size 11x10 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGContainer {g} at (419,79) size 29x177 [transform={m=((1.00,0.00)(0.00,1.00)) t=(100.00,0.00)}]
+            RenderSVGEllipse {circle} at (427,244) size 13x12 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-9,-103) size 18x104 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 17x103
                 chunk 1 (end anchor, vertical) text run 1 at (-10.50,-102.60) startOffset 0 endOffset 1 height 34.20: "e"