Reformat PDFium GN files.

`gn format` recently changed its formatting behavior for deps, source,
and a few other elements when they are assigned (with =) single-element
lists to be consistent with the formatting of updates (with +=) with
single-element.

Now that we've rolled in a GN binary with the change, reformat all files
so that people don't get presubmit warnings due to this.

Bug: chromium:1041419
Tbr: thakis@chromium.org
Change-Id: I879c199419bdd2a9fe09ab09d1a0ce6e178b4fee
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/65531
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/third_party/googletest/BUILD.gn b/third_party/googletest/BUILD.gn
index 2bde37c..dbfc334 100644
--- a/third_party/googletest/BUILD.gn
+++ b/third_party/googletest/BUILD.gn
@@ -89,12 +89,8 @@
 # See README.chromium for details.
 source_set("gtest_main") {
   testonly = true
-  sources = [
-    "src/googletest/src/gtest_main.cc",
-  ]
-  deps = [
-    ":gtest",
-  ]
+  sources = [ "src/googletest/src/gtest_main.cc" ]
+  deps = [ ":gtest" ]
 }
 
 # Do NOT depend on this directly. Use //testing/gmock:gmock_main instead.
@@ -136,10 +132,6 @@
 # See README.chromium for details.
 static_library("gmock_main") {
   testonly = true
-  sources = [
-    "src/googlemock/src/gmock_main.cc",
-  ]
-  deps = [
-    ":gmock",
-  ]
+  sources = [ "src/googlemock/src/gmock_main.cc" ]
+  deps = [ ":gmock" ]
 }