evdev: Factor common code out of key & touch converters

ui/events/ozone/evdev/touch_event_converter.cc

Index: ui/events/ozone/evdev/touch_event_converter.cc
diff --git a/ui/events/ozone/evdev/touch_event_converter.cc b/ui/events/ozone/evdev/touch_event_converter.cc
index d21225e3f36638d703e0a1405a865e1e866c2ca5..15766edfb8e8498e13a5e4b81006e44fa7580cb2 100644
--- a/ui/events/ozone/evdev/touch_event_converter.cc
+++ b/ui/events/ozone/evdev/touch_event_converter.cc
@@ -32,22 +32,22 @@ const float kFingerWidth = 25.f;
 
 namespace ui {
 
-TouchEventConverterEvdev::TouchEventConverterEvdev(int fd, base::FilePath path)
-    : pressure_min_(0),
+TouchEventConverterEvdev::TouchEventConverterEvdev(
+    int fd,
+    base::FilePath path,
+    EventModifiersEvdev* modifiers)
+    : EventConverterEvdev(fd, path, modifiers),
+      pressure_min_(0),
       pressure_max_(0),
       x_scale_(1.),
       y_scale_(1.),
       x_max_(std::numeric_limits<int>::max()),
       y_max_(std::numeric_limits<int>::max()),
-      current_slot_(0),
-      fd_(fd),
-      path_(path) {
+      current_slot_(0) {
   Init();
 }
 
 TouchEventConverterEvdev::~TouchEventConverterEvdev() {
-  if (fd_ >= 0 && close(fd_) < 0)
-    DLOG(WARNING) << "failed close on " << path_.value();
 }
 
 void TouchEventConverterEvdev::Init() {
@@ -99,18 +99,9 @@ void TouchEventConverterEvdev::Init() {
   }
 }
 
-void TouchEventConverterEvdev::OnFileCanWriteWithoutBlocking(int /* fd */) {
-  // Read-only file-descriptors.
-  NOTREACHED();
-}
-
-void TouchEventConverterEvdev::OnFileCanReadWithoutBlocking(int fd) {
-  input_event inputs[MAX_FINGERS * 6 + 1];
-  ssize_t read_size = read(fd, inputs, sizeof(inputs));
-  if (read_size <= 0)
-    return;
-
-  for (unsigned i = 0; i < read_size / sizeof(*inputs); i++) {
+void TouchEventConverterEvdev::ProcessEvents(const struct input_event* inputs,
+                                             int count) {
+  for (int i = 0; i < count; i++) {
     const input_event& input = inputs[i];
     if (input.type == EV_ABS) {
       switch (input.code) {