Clear render buffers

gpu/command_buffer/service/gles2_cmd_decoder_unittest_1.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_1.cc
===================================================================
--- gpu/command_buffer/service/gles2_cmd_decoder_unittest_1.cc	(revision 54850)
+++ gpu/command_buffer/service/gles2_cmd_decoder_unittest_1.cc	(working copy)
@@ -72,16 +72,30 @@
 
 template <>
 void GLES2DecoderTestBase::SpecializedSetup<FramebufferRenderbuffer, 0>(
-    bool /* valid */) {
+    bool valid) {
   DoBindFramebuffer(GL_FRAMEBUFFER, client_framebuffer_id_,
                     kServiceFramebufferId);
+  if (valid) {
+    // Return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT so the code
+    // doesn't try to clear the buffer. That is tested else where.
+    EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
+        .WillOnce(Return(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT))
+        .RetiresOnSaturation();
+  }
 };
 
 template <>
 void GLES2DecoderTestBase::SpecializedSetup<FramebufferTexture2D, 0>(
-    bool /* valid */) {
+    bool valid) {
   DoBindFramebuffer(GL_FRAMEBUFFER, client_framebuffer_id_,
                     kServiceFramebufferId);
+  if (valid) {
+    // Return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT so the code
+    // doesn't try to clear the buffer. That is tested else where.
+    EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
+        .WillOnce(Return(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT))
+        .RetiresOnSaturation();
+  }
 };
 
 template <>