[NaCl SDK] Make the SDK examples buildable as a packaged app.

native_client_sdk/src/examples/input_events/custom_events.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 <sstream>
 
 #include "custom_events.h"
 
 namespace event_queue {
 
@@ skipping 35 matching lines @@
   }
   if (modifier & kNumLockModifier) {
     s += "num-lock ";
   }
   return s;
 }
 
 
 std::string KeyEvent::ToString() const {
   std::ostringstream stream;
-  stream << " Key event:"
+  stream << "Key event:"
          << " modifier:" << string_event_modifiers()
          << " key_code:" << key_code_
          << " time:" << timestamp_
          << " text:" << text_
          << "\n";
   return stream.str();
 }
 
 std::string MouseEvent::ToString() const {
   std::ostringstream stream;
-  stream << " Mouse event:"
+  stream << "Mouse event:"
          << " modifier:" << string_event_modifiers()
          << " button:" << MouseButtonToString(mouse_button_)
          << " x:" << x_position_
          << " y:" << y_position_
          << " click_count:" << click_count_
          << " time:" << timestamp_
          << "\n";
   return stream.str();
 }
 
 std::string WheelEvent::ToString() const {
   std::ostringstream stream;
-  stream << "Wheel event."
+  stream << "Wheel event:"
          << " modifier:" << string_event_modifiers()
          << " deltax:" << delta_x_
          << " deltay:" << delta_y_
          << " wheel_ticks_x:" << ticks_x_
          << " wheel_ticks_y:" << ticks_y_
          << " scroll_by_page: " << scroll_by_page_
          << " time:" << timestamp_
          << "\n";
   return stream.str();
 }
@@ skipping 46 matching lines @@
   touch.y = y;
   touch.radii_x = radii_x;
   touch.radii_y = radii_y;
   touch.angle = angle;
   touch.pressure = pressure;
   touches.push_back(touch);
 }
 
 std::string TouchEvent::ToString() const {
   std::ostringstream stream;
-  stream << " Touch event:" << KindToString(kind_)
+  stream << "Touch event:" << KindToString(kind_)
          << " modifier:" << string_event_modifiers();
   for (size_t i = 0; i < touches.size(); ++i) {
     const Touch& touch = touches[i];
     stream << " x[" << touch.id << "]:" << touch.x
            << " y[" << touch.id << "]:" << touch.y
            << " radii_x[" << touch.id << "]:" << touch.radii_x
            << " radii_y[" << touch.id << "]:" << touch.radii_y
            << " angle[" << touch.id << "]:" << touch.angle
            << " pressure[" << touch.id << "]:" << touch.pressure;
   }
   stream << " time:" << timestamp_ << "\n";
   return stream.str();
 }
 
 }  // end namespace