Use proper namespace in skia/ext

content/common/cursors/webcursor_mac.mm

Index: content/common/cursors/webcursor_mac.mm
diff --git a/content/common/cursors/webcursor_mac.mm b/content/common/cursors/webcursor_mac.mm
index 13c8c0b9c3332a716a5d3668c4dd9102960f0b4c..38870edface20281bce8e8dd64b51d817e5446fd 100644
--- a/content/common/cursors/webcursor_mac.mm
+++ b/content/common/cursors/webcursor_mac.mm
@@ -169,7 +169,7 @@ NSCursor* CreateCustomCursor(const std::vector<char>& custom_data,
   // Both the image and its representation need to have the same size for
   // cursors to appear in high resolution on retina displays. Note that the
   // size of a representation is not the same as pixelsWide or pixelsHigh.
-  NSImage* cursor_image = gfx::SkBitmapToNSImage(bitmap);
+  NSImage* cursor_image = skia::SkBitmapToNSImage(bitmap);
   [cursor_image setSize:dip_size];
   [[[cursor_image representations] objectAtIndex:0] setSize:dip_size];
 
@@ -354,7 +354,7 @@ void WebCursor::InitFromNSCursor(NSCursor* cursor) {
       cursor_info.type = WebCursorInfo::TypeCustom;
       NSPoint hot_spot = [cursor hotSpot];
       cursor_info.hotspot = gfx::Point(hot_spot.x, hot_spot.y);
-      cursor_info.custom_image = gfx::CGImageToSkBitmap(cg_image);
+      cursor_info.custom_image = skia::CGImageToSkBitmap(cg_image);
     } else {
       cursor_info.type = WebCursorInfo::TypePointer;
     }