Fix test -- we should initialize the buffer, otherwise valgrind/DrMemory reports

read from uninitialized memory. Mixer reads data from there, even though test
does not use mixed output.

BUG=125723

Review URL: http://codereview.chromium.org/10268026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134749 0039d316-1c4b-4281-b951-d872f2087c98

media/audio/audio_output_proxy_unittest.cc

@@ -16,9 +16,12 @@
 
 using ::testing::_;
 using ::testing::AllOf;
+using ::testing::DoAll;
 using ::testing::Field;
 using ::testing::Mock;
+using ::testing::NotNull;
 using ::testing::Return;
+using ::testing::SetArrayArgument;
 using media::AudioBuffersState;
 using media::AudioInputStream;
 using media::AudioManager;
@@ -462,25 +465,29 @@ TEST_F(AudioOutputProxyTest, TwoStreams_BothPlaying_Mixer) {
   EXPECT_TRUE(proxy2->Open());
 
   proxy1->Start(&callback_);
+  uint8 zeroes[4] = {0, 0, 0, 0};
   uint8 buf1[4] = {0};
   EXPECT_CALL(callback_,
-      OnMoreData(_, 4,
+      OnMoreData(NotNull(), 4,
                  AllOf(Field(&AudioBuffersState::pending_bytes, 0),
                        Field(&AudioBuffersState::hardware_delay_bytes, 0))))
-      .WillOnce(Return(4));
+      .WillOnce(DoAll(SetArrayArgument<0>(zeroes, zeroes + sizeof(zeroes)),
+                      Return(4)));
   mixer_->OnMoreData(buf1, sizeof(buf1), AudioBuffersState(0, 0));
   proxy2->Start(&callback_);
   uint8 buf2[4] = {0};
   EXPECT_CALL(callback_,
-      OnMoreData(_, 4,
+      OnMoreData(NotNull(), 4,
                  AllOf(Field(&AudioBuffersState::pending_bytes, 4),
                        Field(&AudioBuffersState::hardware_delay_bytes, 0))))
-      .WillOnce(Return(4));
+      .WillOnce(DoAll(SetArrayArgument<0>(zeroes, zeroes + sizeof(zeroes)),
+                      Return(4)));
   EXPECT_CALL(callback_,
-      OnMoreData(_, 4,
+      OnMoreData(NotNull(), 4,
                  AllOf(Field(&AudioBuffersState::pending_bytes, 0),
                        Field(&AudioBuffersState::hardware_delay_bytes, 0))))
-      .WillOnce(Return(4));
+      .WillOnce(DoAll(SetArrayArgument<0>(zeroes, zeroes + sizeof(zeroes)),
+                      Return(4)));
   mixer_->OnMoreData(buf2, sizeof(buf2), AudioBuffersState(4, 0));
   proxy1->Stop();
   proxy2->Stop();

tools/valgrind/drmemory/suppressions_full.txt

@@ -1326,15 +1326,6 @@ name=http://crbug.com/125565
 *!SiteInstanceImpl::GetProcess
 *!BrowserTestOffTheRecord_DelayProfileDestruction_Test::TestBody
 
-# True uninit in media_unittests.
-UNINITIALIZED READ
-name=http://crbug.com/125723
-*!media::AddSaturated<*>
-*!media::MixStreams<*>
-*!media::MixStreams
-*!media::AudioOutputMixer::OnMoreData
-*!media::AudioOutputProxyTest_TwoStreams_BothPlaying_Mixer_Test::TestBody
-
 LEAK
 name=http://crbug.com/125724
 *!operator new

tools/valgrind/memcheck/suppressions_mac.txt

@@ -2417,12 +2417,3 @@
    fun:_ZN8remoting8protocol21AuthenticatorTestBase14RunChannelAuthEb
    fun:_ZN8remoting8protocol52NegotiatingAuthenticatorTest_SuccessfulAuthHmac_Test8TestBodyEv
 }
-{
-   bug_125728
-   Memcheck:Uninitialized
-   fun:_ZN5mediaL12AddSaturatedIiLin32768ELi32767EEEiii
-   fun:_ZN5mediaL10MixStreamsIsiLin32768ELi32767ELi0EEEvPT_S2_if
-   fun:_ZN5media10MixStreamsEPvS0_mif
-   fun:_ZN5media16AudioOutputMixer10OnMoreDataEPhjNS_17AudioBuffersStateE
-   fun:_ZN5media54AudioOutputProxyTest_TwoStreams_BothPlaying_Mixer_Test8TestBodyEv
-}