Add PPAPI tests for VideoSource and VideoDestination resources.

chrome/test/ppapi/ppapi_test.cc

Index: chrome/test/ppapi/ppapi_test.cc
diff --git a/chrome/test/ppapi/ppapi_test.cc b/chrome/test/ppapi/ppapi_test.cc
index 2708068911b4f7850ff263ec7eb6d56a5f71f636..3dbbd51af814b60c059323f1f2cf2830d0bc130c 100644
--- a/chrome/test/ppapi/ppapi_test.cc
+++ b/chrome/test/ppapi/ppapi_test.cc
@@ -314,6 +314,7 @@ OutOfProcessPPAPITest::OutOfProcessPPAPITest() {
 
 void OutOfProcessPPAPITest::SetUpCommandLine(CommandLine* command_line) {
   PPAPITest::SetUpCommandLine(command_line);
+  command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
 }
 
 void PPAPINaClTest::SetUpCommandLine(CommandLine* command_line) {
@@ -327,6 +328,7 @@ void PPAPINaClTest::SetUpCommandLine(CommandLine* command_line) {
   command_line->AppendSwitch(switches::kEnableNaCl);
   command_line->AppendSwitch(switches::kEnablePnacl);
   command_line->AppendSwitchASCII(switches::kAllowNaClSocketAPI, "127.0.0.1");
+  command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
 }
 
 // Append the correct mode and testcase string