Make ui/gl depend on the necessary runtime targets on Windows.

Review URL: https://codereview.chromium.org/1070933002

Cr-Commit-Position: refs/heads/master@{#324320}

gpu/BUILD.gn

@@ -129,14 +129,6 @@ test("gl_tests") {
     deps += [ "//testing/android:native_test_native_code" ]
     libs += [ "android" ]
   }
-
-  # TODO(GYP)
-  #     ['OS == "win"', {
-  #       'dependencies': [
-  #         '../third_party/angle/src/build_angle.gyp:libEGL',
-  #         '../third_party/angle/src/build_angle.gyp:libGLESv2',
-  #       ],
-  #     }],
 }
 
 test("gpu_unittests") {

ui/gl/BUILD.gn

@@ -199,6 +199,12 @@ component("gl") {
 
     libs = [ "dwmapi.lib" ]
     ldflags = [ "/DELAYLOAD:dwmapi.dll" ]
+
+    data_deps += [
+      "//third_party/angle:libEGL",
+      "//third_party/angle:libGLESv2",
+      "//third_party/mesa:osmesa",
+    ]
   }
   if (is_mac) {
     sources += [