Disable tap suppression logic for WebView

content/browser/renderer_host/input/input_router_config_helper.cc

Index: content/browser/renderer_host/input/input_router_config_helper.cc
diff --git a/content/browser/renderer_host/input/input_router_config_helper.cc b/content/browser/renderer_host/input/input_router_config_helper.cc
index d3b229639d4caea9b67d13d6a56e45ff79a8ca30..d3be9b5b9fa99ab248af1e04e164b764493ba0f1 100644
--- a/content/browser/renderer_host/input/input_router_config_helper.cc
+++ b/content/browser/renderer_host/input/input_router_config_helper.cc
@@ -6,21 +6,36 @@
 
 #include "base/command_line.h"
 #include "content/public/common/content_switches.h"
-#include "ui/events/gesture_detection/gesture_detector.h"
-
-#if defined(USE_AURA)
 #include "ui/events/gesture_detection/gesture_configuration.h"
-#elif defined(OS_ANDROID)
-#include "ui/gfx/android/view_configuration.h"
-#include "ui/gfx/screen.h"
-#endif
+#include "ui/events/gesture_detection/gesture_detector.h"
 
 namespace content {
 namespace {
 
-#if defined(USE_AURA)
-// TODO(jdduke): Consolidate router configuration paths using
-// ui::GestureConfiguration.
+// Default time allowance for the touch ack delay before the touch sequence is
+// cancelled, depending on whether the site has a mobile-friendly viewport.
+// Note that these constants are effective only when the timeout is supported.
+const int kDesktopTouchAckTimeoutDelayMs = 200;
+const int kMobileTouchAckTimeoutDelayMs = 1000;
+
+TouchEventQueue::Config GetTouchEventQueueConfig() {
+  TouchEventQueue::Config config;
+
+  config.desktop_touch_ack_timeout_delay =
+      base::TimeDelta::FromMilliseconds(kDesktopTouchAckTimeoutDelayMs);
+  config.mobile_touch_ack_timeout_delay =
+      base::TimeDelta::FromMilliseconds(kMobileTouchAckTimeoutDelayMs);
+
+#if defined(OS_ANDROID)
+  // For historical reasons only Android enables the touch ack timeout.
+  config.touch_ack_timeout_supported = true;
+#else
+  config.touch_ack_timeout_supported = false;
+#endif
+
+  return config;
+}
+
 GestureEventQueue::Config GetGestureEventQueueConfig() {
   GestureEventQueue::Config config;
   ui::GestureConfiguration* gesture_config =
@@ -28,20 +43,20 @@ GestureEventQueue::Config GetGestureEventQueueConfig() {
   config.debounce_interval = base::TimeDelta::FromMilliseconds(
       gesture_config->scroll_debounce_interval_in_ms());
 
-  config.touchscreen_tap_suppression_config.enabled = true;
+  config.touchscreen_tap_suppression_config.enabled =
+      gesture_config->fling_touchscreen_tap_suppression_enabled();
   config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
       base::TimeDelta::FromMilliseconds(
           gesture_config->fling_max_cancel_to_down_time_in_ms());
-
   config.touchscreen_tap_suppression_config.max_tap_gap_time =
       base::TimeDelta::FromMilliseconds(
           gesture_config->semi_long_press_time_in_ms());
 
-  config.touchpad_tap_suppression_config.enabled = true;
+  config.touchpad_tap_suppression_config.enabled =
+      gesture_config->fling_touchpad_tap_suppression_enabled();
   config.touchpad_tap_suppression_config.max_cancel_to_down_time =
       base::TimeDelta::FromMilliseconds(
           gesture_config->fling_max_cancel_to_down_time_in_ms());
-
   config.touchpad_tap_suppression_config.max_tap_gap_time =
       base::TimeDelta::FromMilliseconds(
           gesture_config->fling_max_tap_gap_time_in_ms());
@@ -49,55 +64,6 @@ GestureEventQueue::Config GetGestureEventQueueConfig() {
   return config;
 }
 
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  return TouchEventQueue::Config();
-}
-
-#elif defined(OS_ANDROID)
-
-// Default time allowance for the touch ack delay before the touch sequence is
-// cancelled, depending on whether the site has a mobile-friendly viewport.
-const int kDesktopTouchAckTimeoutDelayMs = 200;
-const int kMobileTouchAckTimeoutDelayMs = 1000;
-
-GestureEventQueue::Config GetGestureEventQueueConfig() {
-  GestureEventQueue::Config config;
-
-  config.touchscreen_tap_suppression_config.enabled = true;
-  config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
-      base::TimeDelta::FromMilliseconds(
-          gfx::ViewConfiguration::GetTapTimeoutInMs());
-  config.touchscreen_tap_suppression_config.max_tap_gap_time =
-      base::TimeDelta::FromMilliseconds(
-          gfx::ViewConfiguration::GetLongPressTimeoutInMs());
-
-  return config;
-}
-
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  TouchEventQueue::Config config;
-
-  config.desktop_touch_ack_timeout_delay =
-      base::TimeDelta::FromMilliseconds(kDesktopTouchAckTimeoutDelayMs);
-  config.mobile_touch_ack_timeout_delay =
-      base::TimeDelta::FromMilliseconds(kMobileTouchAckTimeoutDelayMs);
-  config.touch_ack_timeout_supported = true;
-
-  return config;
-}
-
-#else
-
-GestureEventQueue::Config GetGestureEventQueueConfig() {
-  return GestureEventQueue::Config();
-}
-
-TouchEventQueue::Config GetTouchEventQueueConfig() {
-  return TouchEventQueue::Config();
-}
-
-#endif
-
 }  // namespace
 
 InputRouterImpl::Config GetInputRouterConfigForPlatform() {