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

LayoutTests/platform/linux/svg/text/text-align-01-b-expected.txt

Index: LayoutTests/platform/linux/svg/text/text-align-01-b-expected.txt
diff --git a/LayoutTests/platform/win/svg/text/text-align-01-b-expected.txt b/LayoutTests/platform/linux/svg/text/text-align-01-b-expected.txt
similarity index 88%
copy from LayoutTests/platform/win/svg/text/text-align-01-b-expected.txt
copy to LayoutTests/platform/linux/svg/text/text-align-01-b-expected.txt
index 6bb51c5c50ddc335690f3706b529af79398c36ae..29ce51c6ab99a0b69695d76400bc0cb0a1b042ac 100644
--- a/LayoutTests/platform/win/svg/text/text-align-01-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/text/text-align-01-b-expected.txt
@@ -7,27 +7,27 @@ layer at (0,0) size 800x600
         RenderSVGInlineText {#text} at (0,0) size 444x39
           chunk 1 text run 1 at (5.00,40.00) startOffset 0 endOffset 31 width 444.00: "Test 'text-anchor' (horizontal)"
       RenderSVGContainer {g} at (34,170) size 727x308
-        RenderSVGContainer {g} at (378,170) size 383x58 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,130.00)}]
+        RenderSVGContainer {g} at (377,170) size 384x58 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,130.00)}]
           RenderSVGPath {line} at (383,215) size 84x3 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#000000]}] [x1=0.00] [y1=0.00] [x2=50.00] [y2=0.00]
-          RenderSVGEllipse {circle} at (378,211) size 11x11 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGEllipse {circle} at (377,210) size 13x13 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
           RenderSVGText {text} at (0,-28) size 227x35 contains 1 chunk(s)
             RenderSVGInlineText {#text} at (0,0) size 227x35
               chunk 1 text run 1 at (0.00,0.00) startOffset 0 endOffset 16 width 226.20: "text-anchor:none"
-        RenderSVGContainer {g} at (378,253) size 369x59 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,180.00)}]
+        RenderSVGContainer {g} at (377,253) size 370x59 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,180.00)}]
           RenderSVGPath {line} at (383,299) size 84x2 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#000000]}] [x1=0.00] [y1=0.00] [x2=50.00] [y2=0.00]
-          RenderSVGEllipse {circle} at (378,295) size 11x10 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGEllipse {circle} at (377,294) size 13x12 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
           RenderSVGText {text} at (0,-28) size 218x35 contains 1 chunk(s)
             RenderSVGInlineText {#text} at (0,0) size 218x35
               chunk 1 text run 1 at (0.00,0.00) startOffset 0 endOffset 17 width 217.80: "text-anchor:start"
         RenderSVGContainer {g} at (176,337) size 414x58 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,230.00)}]
           RenderSVGPath {line} at (341,382) size 84x3 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#000000]}] [x1=-25.00] [y1=0.00] [x2=25.00] [y2=0.00]
-          RenderSVGEllipse {circle} at (378,378) size 11x11 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGEllipse {circle} at (377,377) size 13x13 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
           RenderSVGText {text} at (-124,-28) size 248x35 contains 1 chunk(s)
             RenderSVGInlineText {#text} at (0,0) size 248x35
               chunk 1 (middle anchor) text run 1 at (-123.90,0.00) startOffset 0 endOffset 18 width 247.80: "text-anchor:middle"
-        RenderSVGContainer {g} at (34,420) size 355x58 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,280.00)}]
+        RenderSVGContainer {g} at (34,420) size 356x58 [transform={m=((1.00,0.00)(0.00,1.00)) t=(230.00,280.00)}]
           RenderSVGPath {line} at (300,465) size 84x3 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#000000]}] [x1=-50.00] [y1=0.00] [x2=0.00] [y2=0.00]
-          RenderSVGEllipse {circle} at (378,461) size 11x11 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
+          RenderSVGEllipse {circle} at (377,460) size 13x13 [fill={[type=SOLID] [color=#000000]}] [cx=0.00] [cy=0.00] [r=3.00]
           RenderSVGText {text} at (-210,-28) size 210x35 contains 1 chunk(s)
             RenderSVGInlineText {#text} at (0,0) size 210x35
               chunk 1 (end anchor) text run 1 at (-209.40,0.00) startOffset 0 endOffset 15 width 209.40: "text-anchor:end"