Fix win/gn build after https://codereview.chromium.org/1452353002

third_party/WebKit/Source/platform/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/platform/platform.gni")
 import("//third_party/WebKit/Source/platform/platform_generated.gni")
@@ skipping 197 matching lines @@
     "//third_party/qcms",
     "//url",
     "//v8",
   ]
   deps = [
     ":make_platform_generated",
     "//third_party/WebKit/Source/platform/heap",
     "//third_party/WebKit/Source/wtf",
     "//third_party/harfbuzz-ng",
     "//third_party/icu",
+    "//ui/gfx/geometry",
   ]
 
   if (is_mac) {
     sources -= [
       # Uses KillRingMac.mm instead.
       "KillRingNone.cpp",
       "fonts/skia/FontCacheSkia.cpp",
       "scroll/ScrollAnimator.cpp",
       "scroll/ScrollAnimator.h",
 
@@ skipping 212 matching lines @@
 }
 
 if (current_cpu == "x86" || current_cpu == "x64") {
   source_set("blink_x86_sse") {
     sources = blink_platform_sse_files
     deps = [
       ":blink_common",
     ]
   }
 }