Enable touch based selection and editing for webpages behind a flag.

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index a87ebb0e7d0d5bddf5b587ba483d06c2606bfef4..b09c530f7ac1bd4398a15545cd9dfd3cf1e13057 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -15,6 +15,7 @@
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 #include "content/browser/web_contents/interstitial_page_impl.h"
 #include "content/browser/web_contents/navigation_entry_impl.h"
+#include "content/browser/web_contents/touch_editable_impl_aura.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -876,7 +877,8 @@ WebContentsViewAura::WebContentsViewAura(
       content_container_(NULL),
       overscroll_change_brightness_(false),
       current_overscroll_gesture_(OVERSCROLL_NONE),
-      completed_overscroll_gesture_(OVERSCROLL_NONE) {
+      completed_overscroll_gesture_(OVERSCROLL_NONE),
+      touch_editable_(TouchEditableImplAura::Create()) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1114,6 +1116,14 @@ void WebContentsViewAura::UpdateOverscrollWindowBrightness(float delta_x) {
   window->layer()->SetLayerBrightness(brightness);
 }
 
+void WebContentsViewAura::AttachTouchEditableToRenderView() {
+  if (!touch_editable_)
+    return;
+  RenderWidgetHostViewAura* rwhva = static_cast<RenderWidgetHostViewAura*>(
+      web_contents_->GetRenderWidgetHostView());
+  touch_editable_->AttachToView(rwhva);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsViewAura, WebContentsView implementation:
 
@@ -1274,6 +1284,7 @@ RenderWidgetHostView* WebContentsViewAura::CreateViewForWidget(
       navigation_overlay_.reset(new OverscrollNavigationOverlay());
   }
 
+  AttachTouchEditableToRenderView();
   return view;
 }
 
@@ -1294,6 +1305,7 @@ void WebContentsViewAura::RenderViewSwappedIn(RenderViewHost* host) {
     navigation_overlay_->StartObservingView(static_cast<
         RenderWidgetHostViewAura*>(host->GetView()));
   }
+  AttachTouchEditableToRenderView();
 }
 
 void WebContentsViewAura::SetOverscrollControllerEnabled(bool enabled) {
@@ -1314,6 +1326,9 @@ void WebContentsViewAura::ShowContextMenu(
     ContextMenuSourceType type) {
   if (delegate_.get())
     delegate_->ShowContextMenu(params, type);
+  if (touch_editable_)
+    touch_editable_->EndTouchEditing();
+
 }
 
 void WebContentsViewAura::ShowPopupMenu(const gfx::Rect& bounds,
@@ -1339,6 +1354,9 @@ void WebContentsViewAura::StartDragging(
     return;
   }
 
+  if (touch_editable_)
+    touch_editable_->EndTouchEditing();
+
   ui::OSExchangeData::Provider* provider = ui::OSExchangeData::CreateProvider();
   PrepareDragData(drop_data, provider);