Add constructors to WebInputEvents and setters so we can work at cleaning up these public structs.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 0179a9c1a5568f865c138447966a8f0d0b83418a..d5837842ad7e544356aa6e6f0b58a21e7536ce6e 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -6466,11 +6466,9 @@ void RenderFrameImpl::HandlePepperImeCommit(const base::string16& text) {
     base::i18n::UTF16CharIterator iterator(&text);
     int32_t i = 0;
     while (iterator.Advance()) {
-      blink::WebKeyboardEvent char_event;
-      char_event.type = blink::WebInputEvent::Char;
-      char_event.timeStampSeconds =
-          ui::EventTimeStampToSeconds(ui::EventTimeForNow());
-      char_event.modifiers = 0;
+      blink::WebKeyboardEvent char_event(
+          blink::WebInputEvent::Char, blink::WebInputEvent::NoModifiers,
+          ui::EventTimeStampToSeconds(ui::EventTimeForNow()));
       char_event.windowsKeyCode = text[i];
       char_event.nativeKeyCode = text[i];