Collapse the API surface on WebInputEvent via accessor functions.

content/common/input/input_param_traits_unittest.cc

Index: content/common/input/input_param_traits_unittest.cc
diff --git a/content/common/input/input_param_traits_unittest.cc b/content/common/input/input_param_traits_unittest.cc
index f1c1327ef22c0513157c833c336eca753664c1ed..d57038150004b61b9f15ad9e0afa68207eb0450d 100644
--- a/content/common/input/input_param_traits_unittest.cc
+++ b/content/common/input/input_param_traits_unittest.cc
@@ -30,8 +30,8 @@ class InputParamTraitsTest : public testing::Test {
   static void Compare(const InputEvent* a, const InputEvent* b) {
     EXPECT_EQ(!!a->web_event, !!b->web_event);
     if (a->web_event && b->web_event) {
-      const size_t a_size = a->web_event->size;
-      ASSERT_EQ(a_size, b->web_event->size);
+      const size_t a_size = a->web_event->size();
+      ASSERT_EQ(a_size, b->web_event->size());
       EXPECT_EQ(0, memcmp(a->web_event.get(), b->web_event.get(), a_size));
     }
     EXPECT_EQ(a->latency_info.latency_components().size(),