Disable flaky origin trial tests on Android

Several tests are flaking on Android swarming bots as they rely on the
system time being correct. Disabling them until we can remove the
dependency on the system clock.

BUG=672294,672843
TBR=asargent@chromium.org

Review-Url: https://codereview.chromium.org/2564873002
Cr-Commit-Position: refs/heads/master@{#437553}

content/common/origin_trials/trial_token_validator_unittest.cc

@@ -185,7 +185,13 @@ class TrialTokenValidatorTest : public testing::Test {
   TestContentClient test_content_client_;
 };
 
-TEST_F(TrialTokenValidatorTest, ValidateValidToken) {
+// Flaky on Android swarming bots: crbug.com/672294
+#if defined(OS_ANDROID)
+#define MAYBE_ValidateValidToken DISABLED_ValidateValidToken
+#else
+#define MAYBE_ValidateValidToken ValidateValidToken
+#endif
+TEST_F(TrialTokenValidatorTest, MAYBE_ValidateValidToken) {
   std::string feature;
   EXPECT_EQ(blink::WebOriginTrialTokenStatus::Success,
             TrialTokenValidator::ValidateToken(kSampleToken,
@@ -232,7 +238,13 @@ TEST_F(TrialTokenValidatorTest, ValidateValidTokenWithIncorrectKey) {
                                                appropriate_origin_, &feature));
 }
 
-TEST_F(TrialTokenValidatorTest, ValidatorRespectsDisabledFeatures) {
+// Flaky on Android swarming bots: crbug.com/672294
+#if defined(OS_ANDROID)
+#define MAYBE_ValidatorRespectsDisabledFeatures DISABLED_ValidatorRespectsDisabledFeatures
+#else
+#define MAYBE_ValidatorRespectsDisabledFeatures ValidatorRespectsDisabledFeatures
+#endif
+TEST_F(TrialTokenValidatorTest, MAYBE_ValidatorRespectsDisabledFeatures) {
   std::string feature;
   // Disable an irrelevant feature; token should still validate
   DisableFeature(kInappropriateFeatureName);
@@ -254,7 +266,13 @@ TEST_F(TrialTokenValidatorTest, ValidateRequestInsecure) {
       GURL(kInsecureOrigin), response_headers_.get(), kAppropriateFeatureName));
 }
 
-TEST_F(TrialTokenValidatorTest, ValidateRequestValidToken) {
+// Flaky on Android swarming bots: crbug.com/672294
+#if defined(OS_ANDROID)
+#define MAYBE_ValidateRequestValidToken DISABLED_ValidateRequestValidToken
+#else
+#define MAYBE_ValidateRequestValidToken ValidateRequestValidToken
+#endif
+TEST_F(TrialTokenValidatorTest, MAYBE_ValidateRequestValidToken) {
   response_headers_->AddHeader(std::string("Origin-Trial: ") + kSampleToken);
   EXPECT_TRUE(TrialTokenValidator::RequestEnablesFeature(
       GURL(kAppropriateOrigin), response_headers_.get(),
@@ -267,7 +285,13 @@ TEST_F(TrialTokenValidatorTest, ValidateRequestNoTokens) {
       kAppropriateFeatureName));
 }
 
-TEST_F(TrialTokenValidatorTest, ValidateRequestMultipleHeaders) {
+// Flaky on Android swarming bots: crbug.com/672294
+#if defined(OS_ANDROID)
+#define MAYBE_ValidateRequestMultipleHeaders DISABLED_ValidateRequestMultipleHeaders
+#else
+#define MAYBE_ValidateRequestMultipleHeaders ValidateRequestMultipleHeaders
+#endif
+TEST_F(TrialTokenValidatorTest, MAYBE_ValidateRequestMultipleHeaders) {
   response_headers_->AddHeader(std::string("Origin-Trial: ") + kSampleToken);
   response_headers_->AddHeader(std::string("Origin-Trial: ") + kExpiredToken);
   EXPECT_TRUE(TrialTokenValidator::RequestEnablesFeature(
@@ -281,7 +305,13 @@ TEST_F(TrialTokenValidatorTest, ValidateRequestMultipleHeaders) {
       kAppropriateFeatureName));
 }
 
-TEST_F(TrialTokenValidatorTest, ValidateRequestMultipleHeaderValues) {
+// Flaky on Android swarming bots: crbug.com/672294
+#if defined(OS_ANDROID)
+#define MAYBE_ValidateRequestMultipleHeaderValues DISABLED_ValidateRequestMultipleHeaderValues
+#else
+#define MAYBE_ValidateRequestMultipleHeaderValues ValidateRequestMultipleHeaderValues
+#endif
+TEST_F(TrialTokenValidatorTest, MAYBE_ValidateRequestMultipleHeaderValues) {
   response_headers_->AddHeader(std::string("Origin-Trial: ") + kExpiredToken +
                                ", " + kSampleToken);
   EXPECT_TRUE(TrialTokenValidator::RequestEnablesFeature(