PepperPlatformAudioInputImpl: support audio input device selection.

webkit/plugins/ppapi/mock_plugin_delegate.cc

Index: webkit/plugins/ppapi/mock_plugin_delegate.cc
diff --git a/webkit/plugins/ppapi/mock_plugin_delegate.cc b/webkit/plugins/ppapi/mock_plugin_delegate.cc
index 5f98716443a2003f6c451824ef0a824050418ee5..44b815ec142fb22b7d0e4387c5798f24f98e1908 100644
--- a/webkit/plugins/ppapi/mock_plugin_delegate.cc
+++ b/webkit/plugins/ppapi/mock_plugin_delegate.cc
@@ -85,14 +85,15 @@ uint32_t MockPluginDelegate::GetAudioHardwareOutputBufferSize() {
 MockPluginDelegate::PlatformAudioOutput* MockPluginDelegate::CreateAudioOutput(
     uint32_t sample_rate,
     uint32_t sample_count,
-    PlatformAudioCommonClient* client) {
+    PlatformAudioOutputClient* client) {
   return NULL;
 }
 
 MockPluginDelegate::PlatformAudioInput* MockPluginDelegate::CreateAudioInput(
+    const std::string& device_id,
     uint32_t sample_rate,
     uint32_t sample_count,
-    PlatformAudioCommonClient* client) {
+    PlatformAudioInputClient* client) {
   return NULL;
 }