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

chrome/browser/policy/policy_browsertest.cc

 // Copyright (c) 2012 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
 #include <string>
@@ skipping 766 matching lines @@
     provider_.UpdateChromePolicy(policy);
     DCHECK(base::MessageLoop::current());
     base::RunLoop loop;
     loop.RunUntilIdle();
   }
 
   // Sends a mouse click at the given coordinates to the current renderer.
   void PerformClick(int x, int y) {
     content::WebContents* contents =
         browser()->tab_strip_model()->GetActiveWebContents();
-    blink::WebMouseEvent click_event;
-    click_event.type = blink::WebInputEvent::MouseDown;
+    blink::WebMouseEvent click_event(blink::WebInputEvent::MouseDown,
+                                     blink::WebInputEvent::NoModifiers,
+                                     blink::WebInputEvent::TimeStampForTesting);
     click_event.button = blink::WebMouseEvent::Button::Left;
     click_event.clickCount = 1;
     click_event.x = x;
     click_event.y = y;
     contents->GetRenderViewHost()->GetWidget()->ForwardMouseEvent(click_event);
-    click_event.type = blink::WebInputEvent::MouseUp;
+    click_event.setType(blink::WebInputEvent::MouseUp);
     contents->GetRenderViewHost()->GetWidget()->ForwardMouseEvent(click_event);
   }
 
   void SetPolicy(PolicyMap* policies,
                  const char* key,
                  std::unique_ptr<base::Value> value) {
     if (value) {
       policies->Set(key, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
                     POLICY_SOURCE_CLOUD, std::move(value), nullptr);
     } else {
@@ skipping 3515 matching lines @@
 
   SetEmptyPolicy();
   // Policy not set.
   CheckSystemTimezoneAutomaticDetectionPolicyUnset();
   EXPECT_TRUE(CheckResolveTimezoneByGeolocation(true, false));
   EXPECT_TRUE(manager->TimeZoneResolverShouldBeRunningForTests());
 }
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace policy