Add an interface to gather text surrounding the selection.

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/sys_utils.h"
 #include "base/basictypes.h"
@@ skipping 415 matching lines @@
       InternalSwapCompositorFrame(last_frame_info_->output_surface_id,
                                   last_frame_info_->frame.Pass());
       last_frame_info_.reset();
     }
 
     if (!is_showing_ && layer_)
       layer_->SetHideLayerAndSubtree(true);
   }
 }
 
+void RenderWidgetHostViewAndroid::SetTextSurroundingSelectionCallback(
+    const TextSurroundingSelectionCallback& callback) {
+  // Only one outstanding request is allowed at any given time.
+  DCHECK(!callback.is_null());
+  text_surrounding_selection_callback_ = callback;
+}
+
 void RenderWidgetHostViewAndroid::OnTextSurroundingSelectionResponse(
     const base::string16& content,
     size_t start_offset,
     size_t end_offset) {
+  if (text_surrounding_selection_callback_.is_null())
+    return;
+  text_surrounding_selection_callback_.Run(content, start_offset, end_offset);
+  text_surrounding_selection_callback_.Reset();
 }
 
 void RenderWidgetHostViewAndroid::ReleaseLocksOnSurface() {
   if (!frame_evictor_->HasFrame()) {
     DCHECK_EQ(locks_on_frame_count_, 0u);
     return;
   }
   while (locks_on_frame_count_ > 0) {
     UnlockCompositingSurface();
   }
@@ skipping 986 matching lines @@
   results->availableRect = display.work_area();
   results->deviceScaleFactor = display.device_scale_factor();
   results->orientationAngle = display.RotationAsDegree();
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content