Fix the build with enable_webrtc=0 after r281588.

CanUseCompositorAPI() and CanUseVideoDecodeAPI() were defined only if WebRTC support was enabled, even though they do not depend on it.
    
Make the ENABLE_WEBRTC ifdef cover only CanUseMediaStreamAPI() instead.

BUG=386743
R=teravest@chromium.org, dmichael@chromium.org

Review URL: https://codereview.chromium.org/390763003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283512 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/pepper/content_renderer_pepper_host_factory.cc

@@ -39,9 +39,9 @@ using ppapi::UnpackMessage;
 
 namespace content {
 
-#if defined(ENABLE_WEBRTC)
 namespace {
 
+#if defined(ENABLE_WEBRTC)
 bool CanUseMediaStreamAPI(const RendererPpapiHost* host, PP_Instance instance) {
   blink::WebPluginContainer* container =
       host->GetContainerForInstance(instance);
@@ -53,6 +53,7 @@ bool CanUseMediaStreamAPI(const RendererPpapiHost* host, PP_Instance instance) {
       GetContentClient()->renderer();
   return content_renderer_client->AllowPepperMediaStreamAPI(document_url);
 }
+#endif  // defined(ENABLE_WEBRTC)
 
 bool CanUseCompositorAPI(const RendererPpapiHost* host, PP_Instance instance) {
   blink::WebPluginContainer* container =
@@ -81,7 +82,6 @@ bool CanUseVideoDecodeAPI(const RendererPpapiHost* host, PP_Instance instance) {
 }
 
 }  // namespace
-#endif  // defined(ENABLE_WEBRTC)
 
 ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
     RendererPpapiHostImpl* host)