fix for builds with webrtc disabled

content/renderer/media/media_stream_video_source.cc

 // Copyright 2014 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/renderer/media/media_stream_video_source.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 21 matching lines @@
   MediaStreamVideoSource::kMaxAspectRatio,
   MediaStreamVideoSource::kMinAspectRatio,
   MediaStreamVideoSource::kMaxWidth,
   MediaStreamVideoSource::kMinWidth,
   MediaStreamVideoSource::kMaxHeight,
   MediaStreamVideoSource::kMinHeight,
   MediaStreamVideoSource::kMaxFrameRate,
   MediaStreamVideoSource::kMinFrameRate,
 };
 
-const int MediaStreamVideoSource::kDefaultWidth = 640;
-const int MediaStreamVideoSource::kDefaultHeight = 480;
-const int MediaStreamVideoSource::kDefaultFrameRate = 30;
-const int MediaStreamVideoSource::kUnknownFrameRate = 0;
-
 namespace {
 
 // Google-specific key prefix. Constraints with this prefix are ignored if they
 // are unknown.
 const char kGooglePrefix[] = "goog";
 
 // Returns true if |constraint| has mandatory constraints.
 bool HasMandatoryConstraints(const blink::WebMediaConstraints& constraints) {
   blink::WebVector<blink::WebMediaConstraint> mandatory_constraints;
   constraints.getMandatoryConstraints(mandatory_constraints);
@@ skipping 270 matching lines @@
     const blink::WebMediaConstraints& constraints,
     media::VideoCaptureFormat* capture_format) {
   DCHECK(!formats.empty());
 
   int max_width;
   int max_height;
   GetDesiredMaxWidthAndHeight(constraints, &max_width, &max_height);
 
   *capture_format = GetBestFormatBasedOnArea(
       formats,
-      std::min(max_width, MediaStreamVideoSource::kDefaultWidth) *
-      std::min(max_height, MediaStreamVideoSource::kDefaultHeight));
+      std::min(max_width,
+               static_cast<int>(MediaStreamVideoSource::kDefaultWidth)) *
+          std::min(max_height,
+                   static_cast<int>(MediaStreamVideoSource::kDefaultHeight)));
 }
 
 }  // anonymous namespace
 
 // static
 MediaStreamVideoSource* MediaStreamVideoSource::GetVideoSource(
     const blink::WebMediaStreamSource& source) {
   return static_cast<MediaStreamVideoSource*>(source.extraData());
 }
 
@@ skipping 269 matching lines @@
     : track(track),
       frame_callback(frame_callback),
       constraints(constraints),
       callback(callback) {
 }
 
 MediaStreamVideoSource::RequestedConstraints::~RequestedConstraints() {
 }
 
 }  // namespace content