Move rendering/RenderImage* to layout/LayoutImage*

LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt

Index: LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt
diff --git a/LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt b/LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt
index 8757cf7c313b0b7dce0e384acf5dd936dfb3d5f8..6433955b26330fb846ceb89a0aefcc3b5ad06f00 100644
--- a/LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt
+++ b/LayoutTests/platform/mac/tables/mozilla/bugs/bug25074-expected.txt
@@ -7,9 +7,9 @@ layer at (0,0) size 800x600
         LayoutTableSection {TBODY} at (0,0) size 53x18
           LayoutTableRow {TR} at (0,0) size 53x18
             LayoutTableCell {TD} at (0,1) size 7x15 [r=0 c=0 rs=1 cs=1]
-              RenderImage {IMG} at (0,0) size 7x15
+              LayoutImage {IMG} at (0,0) size 7x15
             LayoutTableCell {TD} at (7,0) size 40x18 [r=0 c=1 rs=1 cs=1]
               RenderText {#text} at (0,0) size 40x18
                 text run at (0,0) width 40: "Home"
             LayoutTableCell {TD} at (47,1) size 6x15 [r=0 c=2 rs=1 cs=1]
-              RenderImage {IMG} at (0,0) size 6x15
+              LayoutImage {IMG} at (0,0) size 6x15