Make Widget an EventSource and RootView an EventProcessor

This CL makes a few changes in preparation for adding a ViewTargeter
and using EventProcessor::OnEventFromSource():

* Widget is now an EventSource.

* RootView is now an EventProcessor.

* With the exception of mouse events, Widget uses SendEventToProcessor()
to send events to RootView.

* The Dispatch*Event() functions in RootView have been made private
(or protected, in the case of DispatchGestureEvent()) to disallow
invocation from outside the class. These will eventually be removed.

* Added a temporary override of OnEventFromSource() to RootView,
which calls the private/protected Dispatch*Event() functions. Once
the code for a specific event type has been refactored, I will only
need to make a one-line change to instead call
EventProcessor::OnEventFromSource() for targeting and dispatch.

* Updated tests to call OnEventFromSource() instead of
Dispatch*Event().

BUG=348077
TEST=none

Review URL: https://codereview.chromium.org/180453003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256282 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 2 deletions

diff --git a/ui/views/corewm/desktop_capture_controller_unittest.cc b/ui/views/corewm/desktop_capture_controller_unittest.cc
index 18b3976..679af19 100644
--- a/ui/views/corewm/desktop_capture_controller_unittest.cc
+++ b/ui/views/corewm/desktop_capture_controller_unittest.cc
@@ -130,6 +130,7 @@ TEST_F(DesktopCaptureControllerTest, CaptureWindowInputEventTest) {
   aura::client::SetScreenPositionClient(
       widget2->GetNativeView()->GetRootWindow(),
       desktop_position_client2.get());
+  ui::EventDispatchDetails details;
 
   DesktopViewInputTest* v2 = new DesktopViewInputTest();
   v2->SetBoundsRect(gfx::Rect(0, 0, 300, 300));
@@ -150,7 +151,10 @@ TEST_F(DesktopCaptureControllerTest, CaptureWindowInputEventTest) {
                       base::TimeDelta(),
                       ui::GestureEventDetails(ui::ET_GESTURE_LONG_PRESS,
                                               0.0f, 0.0f), 0);
-  root1->DispatchGestureEvent(&g1);
+  details = root1->OnEventFromSource(&g1);
+  EXPECT_FALSE(details.dispatcher_destroyed);
+  EXPECT_FALSE(details.target_destroyed);
+
   EXPECT_TRUE(v1->received_gesture_event());
   EXPECT_FALSE(v2->received_gesture_event());
   v1->Reset();
@@ -162,7 +166,10 @@ TEST_F(DesktopCaptureControllerTest, CaptureWindowInputEventTest) {
   EXPECT_TRUE(widget2->GetNativeView()->HasCapture());
   EXPECT_EQ(capture_client->GetCaptureWindow(), widget2->GetNativeView());
 
-  root2->DispatchGestureEvent(&g1);
+  details = root2->OnEventFromSource(&g1);
+  EXPECT_FALSE(details.dispatcher_destroyed);
+  EXPECT_FALSE(details.target_destroyed);
+
   EXPECT_TRUE(v2->received_gesture_event());
   EXPECT_FALSE(v1->received_gesture_event());