Replace instances of datadeps --> data_deps.

content/shell/BUILD.gn

Index: content/shell/BUILD.gn
diff --git a/content/shell/BUILD.gn b/content/shell/BUILD.gn
index e90f2817b2579c244cc9ca660bd376778da186e4..cfb301c2919c1a461d5f0ecbdfac751a0fe4a6a9 100644
--- a/content/shell/BUILD.gn
+++ b/content/shell/BUILD.gn
@@ -260,9 +260,7 @@ static_library("content_shell_lib") {
   if (use_x11) {
     # Some tests rely on this tool at runtime. Note: it might be better if
     # the tests that needed it had this as a dep instead of adding it here.
-    datadeps = [
-      "//tools/xdisplaycheck",
-    ]
+    data_deps = [ "//tools/xdisplaycheck" ]
 
     deps += [ "//ui/events/devices" ]
   }
@@ -437,9 +435,7 @@ if (!is_android && !is_mac) {
     if (is_android) {
       # Some tests rely on this tool. It might be nicer if these tests relied on
       # image diff rather than having content shell depend on it.
-      datadeps = [
-        "//tools/imagediff($host_toolchain)",
-      ]
+      data_deps = [ "//tools/imagediff($host_toolchain)" ]
     }
   }
 } else {