Add a getSelectedText method to the PDF plugin.

pdf/instance.cc

Index: pdf/instance.cc
diff --git a/pdf/instance.cc b/pdf/instance.cc
index a71d071ba9cb7fc5e1a104c0424251770dd8cdce..8ec4a9e7e365c4243da41af98ee536c936c7ec83 100644
--- a/pdf/instance.cc
+++ b/pdf/instance.cc
@@ -76,6 +76,7 @@ const char kJSGetHeight[] = "getHeight";
 const char kJSGetHorizontalScrollbarThickness[] =
     "getHorizontalScrollbarThickness";
 const char kJSGetPageLocationNormalized[] = "getPageLocationNormalized";
+const char kJSGetSelectedText[] = "getSelectedText";
 const char kJSGetVerticalScrollbarThickness[] = "getVerticalScrollbarThickness";
 const char kJSGetWidth[] = "getWidth";
 const char kJSGetZoomLevel[] = "getZoomLevel";
@@ -1683,6 +1684,7 @@ bool Instance::HasScriptableMethod(const pp::Var& method, pp::Var* exception) {
           method_str == kJSGetHeight ||
           method_str == kJSGetHorizontalScrollbarThickness ||
           method_str == kJSGetPageLocationNormalized ||
+          method_str == kJSGetSelectedText ||
           method_str == kJSGetVerticalScrollbarThickness ||
           method_str == kJSGetWidth ||
           method_str == kJSGetZoomLevel ||
@@ -1806,6 +1808,9 @@ pp::Var Instance::CallScriptableMethod(const pp::Var& method,
     return pp::Var(
           v_scrollbar_.get() ? GetScrollbarReservedThickness() : 0);
   }
+  if (method_str == kJSGetSelectedText) {
+    return GetSelectedText(false);
+  }
   if (method_str == kJSDocumentLoadComplete) {
     return pp::Var((document_load_state_ != LOAD_STATE_LOADING));
   }