Fix Mac-gcc warnings.

Resolves:
- warning: allocating zero-element array
- warning: suggest a space before ‘;’ or explicit braces around empty
  body in ‘for’ statement

BUG=none
TEST=build on Mac-gcc, trybots

Review URL: https://webrtc-codereview.appspot.com/675006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2519 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_coding/neteq/test/NetEqRTPplay.cc

@@ -716,7 +716,8 @@ int main(int argc, char* argv[])
     free(msInfo);
 
     for (std::vector<NETEQTEST_NetEQClass *>::iterator it = NetEQvector.begin();
-        it < NetEQvector.end(); delete *it++);
+        it < NetEQvector.end(); delete *it++) {
+    }
 
     printf("\nSimulation done!\n");
 

src/modules/video_coding/main/test/video_rtp_play.cc

@@ -164,7 +164,8 @@ int RtpPlay(CmdArgs& args)
                 return -1;
             }
         }
-        while (vcm->DecodeDualFrame(0) == 1);
+        while (vcm->DecodeDualFrame(0) == 1) {
+        }
         if (vcm->TimeUntilNextProcess() <= 0)
         {
             vcm->Process();

src/modules/video_coding/main/test/video_rtp_play_mt.cc

@@ -53,7 +53,8 @@ bool DecodeThread(void* obj)
 {
     SharedState* state = static_cast<SharedState*>(obj);
     state->_vcm.Decode(10000);
-    while (state->_vcm.DecodeDualFrame(0) == 1);
+    while (state->_vcm.DecodeDualFrame(0) == 1) {
+    }
     return true;
 }
 

src/test/testsupport/packet_reader_unittest.cc

@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
@@ -111,12 +111,13 @@ TEST_F(PacketReaderTest, NormalLargeData) {
 // Test with empty data.
 TEST_F(PacketReaderTest, EmptyData) {
   const int kDataLengthInBytes = 0;
-  WebRtc_UWord8* data = new WebRtc_UWord8[kDataLengthInBytes];
+  // But don't really try to allocate a zero-length array...
+  WebRtc_UWord8 data[kPacketSizeInBytes];
+  WebRtc_UWord8* data_pointer = data;
   reader_->InitializeReading(data, kDataLengthInBytes, kPacketSizeInBytes);
-  EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data));
+  EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data_pointer));
   // Do it again to make sure nothing changes
-  EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data));
-  delete[] data;
+  EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data_pointer));
 }
 
 }  // namespace test

tools/e2e_quality/audio/audio_e2e_harness.cc

@@ -86,7 +86,8 @@ void RunHarness() {
   ASSERT_EQ(0, base->StartSend(channel));
 
   // Run forever...
-  while (1);
+  while (1) {
+  }
 }
 
 }  // namespace