Fix for Multipage selection by dragging mouse in OOP case in PDF.

pdf/out_of_process_instance.cc

Index: pdf/out_of_process_instance.cc
diff --git a/pdf/out_of_process_instance.cc b/pdf/out_of_process_instance.cc
index 169a4403498a21b2a2eb9dac16f5c88ff5e022f8..74544d90e2724c529408ae4f21d217e116c0e643 100644
--- a/pdf/out_of_process_instance.cc
+++ b/pdf/out_of_process_instance.cc
@@ -144,6 +144,10 @@ const char kJSSelectedText[] = "selectedText";
 const char kJSSetNamedDestinationsType[] = "setNamedDestinations";
 const char kJSNamedDestinations[] = "namedDestinations";
 
+// Selecting text in document (Plugin -> Page)
+const char kJSSetIsSelectingType[] = "setIsSelecting";
+const char kJSIsSelecting[] = "isSelecting";
+
 const int kFindResultCooldownMs = 100;
 
 const double kMinZoom = 0.01;
@@ -1351,6 +1355,13 @@ uint32 OutOfProcessInstance::GetBackgroundColor() {
   return background_color_;
 }
 
+void OutOfProcessInstance::IsSelectingChanged(bool is_selecting) {
+  pp::VarDictionary message;
+  message.Set(kType, kJSSetIsSelectingType);
+  message.Set(kJSIsSelecting, pp::Var(is_selecting));
+  PostMessage(message);
+}
+
 void OutOfProcessInstance::ProcessPreviewPageInfo(const std::string& url,
                                                   int dst_page_index) {
   if (!IsPrintPreview())