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

LayoutTests/platform/linux/svg/W3C-SVG-1.1/text-align-05-b-expected.txt

Index: LayoutTests/platform/linux/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
diff --git a/LayoutTests/platform/win/svg/W3C-SVG-1.1/text-align-05-b-expected.txt b/LayoutTests/platform/linux/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
similarity index 91%
copy from LayoutTests/platform/win/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
copy to LayoutTests/platform/linux/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
index 8d133557484e5fb3258cc51e4891b2c40e9b7929..b7f34084199ba31a02e7209ccc32256b077ec0cc 100644
--- a/LayoutTests/platform/win/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/W3C-SVG-1.1/text-align-05-b-expected.txt
@@ -8,8 +8,8 @@ layer at (0,0) size 480x360
           chunk 1 text run 1 at (5.00,40.00) startOffset 0 endOffset 29 width 457.00: "Test 'text-anchor' (vertical)"
       RenderSVGContainer {g} at (152,45) size 117x280
         RenderSVGContainer {g} at (152,45) size 117x280 [transform={m=((1.00,0.00)(0.00,1.00)) t=(160.00,150.00)}]
-          RenderSVGContainer {g} at (152,147) size 16x178
-            RenderSVGEllipse {circle} at (157,147) size 6x6 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGContainer {g} at (152,146) size 16x179
+            RenderSVGEllipse {circle} at (156,146) size 8x8 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-8,0) size 16x175 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 16x175
                 chunk 1 (vertical) text run 1 at (-10.50,0.00) startOffset 0 endOffset 1 height 35.00: "s"
@@ -18,7 +18,7 @@ layer at (0,0) size 480x360
                 chunk 1 (vertical) text run 4 at (-10.50,105.00) startOffset 3 endOffset 4 height 35.00: "r"
                 chunk 1 (vertical) text run 5 at (-10.50,140.00) startOffset 4 endOffset 5 height 35.00: "t"
           RenderSVGContainer {g} at (197,45) size 26x210 [transform={m=((1.00,0.00)(0.00,1.00)) t=(50.00,0.00)}]
-            RenderSVGEllipse {circle} at (207,147) size 6x6 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+            RenderSVGEllipse {circle} at (206,146) size 8x8 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-13,-105) size 26x210 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 25x210
                 chunk 1 (middle anchor, vertical) text run 1 at (-10.50,-105.00) startOffset 0 endOffset 1 height 35.00: "m"
@@ -27,8 +27,8 @@ layer at (0,0) size 480x360
                 chunk 1 (middle anchor, vertical) text run 4 at (-10.50,0.00) startOffset 3 endOffset 4 height 35.00: "d"
                 chunk 1 (middle anchor, vertical) text run 5 at (-10.50,35.00) startOffset 4 endOffset 5 height 35.00: "l"
                 chunk 1 (middle anchor, vertical) text run 6 at (-10.50,70.00) startOffset 5 endOffset 6 height 35.00: "e"
-          RenderSVGContainer {g} at (251,45) size 18x108 [transform={m=((1.00,0.00)(0.00,1.00)) t=(100.00,0.00)}]
-            RenderSVGEllipse {circle} at (257,147) size 6x6 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGContainer {g} at (251,45) size 18x109 [transform={m=((1.00,0.00)(0.00,1.00)) t=(100.00,0.00)}]
+            RenderSVGEllipse {circle} at (256,146) size 8x8 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
             RenderSVGText {text} at (-9,-105) size 18x105 contains 1 chunk(s)
               RenderSVGInlineText {#text} at (0,0) size 17x105
                 chunk 1 (end anchor, vertical) text run 1 at (-10.50,-105.00) startOffset 0 endOffset 1 height 35.00: "e"