Convert the remaining plugin_tests from ui_tests to browser_tests. Also remove the remaining references to ui_tests and plugin_tests from gypi files.

BUG=121574
Review URL: https://chromiumcodereview.appspot.com/10389111

git-svn-id: http://src.chromium.org/svn/trunk/src/build@137010 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -242,7 +242,6 @@
         'chromium_builder_qa', # needed for pyauto
         '../chrome/chrome.gyp:performance_browser_tests',
         '../chrome/chrome.gyp:performance_ui_tests',
-        '../chrome/chrome.gyp:plugin_tests',
         '../chrome/chrome.gyp:sync_performance_tests',
       ],
     }, # target_name: chromium_builder_perf
@@ -331,7 +330,6 @@
             '../chrome/chrome.gyp:browser_tests',
             '../chrome/chrome.gyp:performance_browser_tests',
             '../chrome/chrome.gyp:performance_ui_tests',
-            '../chrome/chrome.gyp:plugin_tests',
             '../chrome/chrome.gyp:safe_browsing_tests',
             '../chrome/chrome.gyp:sync_integration_tests',
             '../chrome/chrome.gyp:unit_tests',
@@ -407,7 +405,6 @@
             '../chrome/chrome.gyp:mini_installer_test',
             '../chrome/chrome.gyp:performance_browser_tests',
             '../chrome/chrome.gyp:performance_ui_tests',
-            '../chrome/chrome.gyp:plugin_tests',
             '../chrome/chrome.gyp:safe_browsing_tests',
             '../chrome/chrome.gyp:sync_integration_tests',
             '../chrome/chrome.gyp:unit_tests',