Reland: Extract media/capture/capture_unittests from media_unittests

testing/buildbot/chromium.linux.json

Index: testing/buildbot/chromium.linux.json
diff --git a/testing/buildbot/chromium.linux.json b/testing/buildbot/chromium.linux.json
index 9d77045e81a0674f8b3934f20c21501eb461b7f8..46733aa521bcec9601a82603f7239f3d0e0ebc65 100644
--- a/testing/buildbot/chromium.linux.json
+++ b/testing/buildbot/chromium.linux.json
@@ -130,6 +130,20 @@
         "test": "breakpad_unittests"
       },
       {
+        "override_isolate_target": "capture_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "android_devices": "4",
+              "device_os": "KTU84P",
+              "device_type": "hammerhead"
+            }
+          ]
+        },
+        "test": "capture_unittests"
+      },
+      {
         "override_isolate_target": "cc_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
@@ -673,6 +687,9 @@
         "test": "breakpad_unittests"
       },
       {
+        "test": "capture_unittests"
+      },
+      {
         "test": "cc_unittests"
       },
       {
@@ -842,6 +859,12 @@
         "test": "cacheinvalidation_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "capture_unittests"
+      },
+      {
         "test": "cast_alsa_cma_backend_unittests"
       },
       {
@@ -1038,6 +1061,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "capture_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "cast_unittests"
       },
       {
@@ -1545,6 +1574,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "capture_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "cast_unittests"
       },
       {
@@ -1948,6 +1983,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "capture_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "cast_unittests"
       },
       {