Add support for GL_COMMANDS_ISSUED_CHROMIUM fence like query.

gpu/command_buffer/build_gles2_cmd_buffer.py

Index: gpu/command_buffer/build_gles2_cmd_buffer.py
diff --git a/gpu/command_buffer/build_gles2_cmd_buffer.py b/gpu/command_buffer/build_gles2_cmd_buffer.py
index fbaa67dabda15e078a628e01d28bd99b676bea0a..a652c6347cdd597d0c04db4cdadccd8374897813 100755
--- a/gpu/command_buffer/build_gles2_cmd_buffer.py
+++ b/gpu/command_buffer/build_gles2_cmd_buffer.py
@@ -451,6 +451,7 @@ _ENUM_LISTS = {
     'valid': [
       'GL_ANY_SAMPLES_PASSED_EXT',
       'GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT',
+      'GL_COMMANDS_ISSUED_CHROMIUM',
     ],
   },
   'RenderBufferParameter': {
@@ -795,6 +796,7 @@ _PEPPER_INTERFACES = [
 # valid_args:   A dictionary of argument indices to args to use in unit tests
 #               when they can not be automatically determined.
 # pepper_interface: The pepper interface that is used for this extension
+# invalid_test: False if no invalid test needed.
 
 _FUNCTION_INFO = {
   'ActiveTexture': {
@@ -1594,12 +1596,16 @@ _FUNCTION_INFO = {
     'gl_test_func': 'glGenQueriesARB',
     'resource_type': 'Query',
     'resource_types': 'Queries',
+    'expectation': False,
+    'get_test': False,
+    'invalid_test': False,
   },
   'DeleteQueriesEXT': {
     'type': 'DELn',
     'gl_test_func': 'glDeleteQueriesARB',
     'resource_type': 'Query',
     'resource_types': 'Queries',
+    'expectation': False,
   },
   'IsQueryEXT': {
     'gen_cmd': False,
@@ -2794,13 +2800,19 @@ TEST_F(%(test_name)s, %(name)sValidArgs) {
   cmd.Init(%(args)s);
   EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
-  EXPECT_TRUE(Get%(resource_name)sInfo(kNewClientId) != NULL);
+  GetTest
 }
 """
-    self.WriteValidUnitTest(func, file, valid_test,  {
+    get_test = ""
+    if func.GetInfo("get_test") or func.GetInfo("get_test") == None:
+      get_test = ("EXPECT_TRUE(Get%sInfo(kNewClientId) != NULL);" %
+          func.GetInfo('resource_type'))
+    valid_test = valid_test.replace('GetTest', get_test);
+    self.WriteValidUnitTest(func, file, valid_test, {
         'resource_name': func.GetInfo('resource_type'),
       })
-    invalid_test = """
+    if func.GetInfo('invalid_test') or func.GetInfo('invalid_test') == None:
+      invalid_test = """
 TEST_F(%(test_name)s, %(name)sInvalidArgs) {
   EXPECT_CALL(*gl_, %(gl_func_name)s(_, _)).Times(0);
   GetSharedMemoryAs<GLuint*>()[0] = client_%(resource_name)s_id_;
@@ -2810,9 +2822,9 @@ TEST_F(%(test_name)s, %(name)sInvalidArgs) {
   EXPECT_EQ(error::kInvalidArguments, ExecuteCmd(cmd));
 }
 """
-    self.WriteValidUnitTest(func, file, invalid_test, {
-          'resource_name': func.GetInfo('resource_type').lower(),
-        })
+      self.WriteValidUnitTest(func, file, invalid_test, {
+            'resource_name': func.GetInfo('resource_type').lower(),
+          })
 
   def WriteImmediateServiceUnitTest(self, func, file):
     """Overrriden from TypeHandler."""