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 0ccfa36b5db64281b17a92f000f21c6d206e77f7..47d442fe4fd3dbe44fba9af455e727a0afa6381f 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;
@@ -1347,6 +1351,13 @@ bool OutOfProcessInstance::IsPrintPreview() {
   return IsPrintPreviewUrl(url_);
 }
 
+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())