Notify selection controller on tab changes.

chrome/browser/renderer_host/render_widget_host_view_views.cc

Index: chrome/browser/renderer_host/render_widget_host_view_views.cc
diff --git a/chrome/browser/renderer_host/render_widget_host_view_views.cc b/chrome/browser/renderer_host/render_widget_host_view_views.cc
index 6178cbf711b66dc08ef16331e394673531e4a129..fbcbecc6e8671a9b28826b169c08a1c5782b1dd2 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_views.cc
+++ b/chrome/browser/renderer_host/render_widget_host_view_views.cc
@@ -149,6 +149,11 @@ void RenderWidgetHostViewViews::DidBecomeSelected() {
   is_hidden_ = false;
   if (host_)
     host_->WasRestored();
+
+  if (touch_selection_controller_.get()) {

[sky, 2011/08/25 22:54:17]

What happens if the page scrolls before you get here, or the page is relayed
out? Do both of these trigger calls to SelectionChanged?

[varunjain, 2011/08/25 23:49:22]

Yes.. selection_start and end will be updated appropriately in both cases
through SelectionChanged

+    touch_selection_controller_->SelectionChanged(touch_selection_start_,
+                                                  touch_selection_end_);
+  }
 }
 
 void RenderWidgetHostViewViews::WasHidden() {
@@ -164,6 +169,9 @@ void RenderWidgetHostViewViews::WasHidden() {
   // reduce its resource utilization.
   if (host_)
     host_->WasHidden();
+
+  if (touch_selection_controller_.get())
+    touch_selection_controller_->ClientViewLostFocus();
 }
 
 void RenderWidgetHostViewViews::SetSize(const gfx::Size& size) {
@@ -330,6 +338,8 @@ void RenderWidgetHostViewViews::SelectionChanged(const std::string& text,
                                                  const gfx::Point& end) {
   // TODO(anicolao): deal with the clipboard without GTK
   NOTIMPLEMENTED();
+  touch_selection_start_ = start;
+  touch_selection_end_ = end;
   if (touch_selection_controller_.get())
     touch_selection_controller_->SelectionChanged(start, end);
 }