Update from https://crrev.com/315085

gpu/command_buffer/service/shader_manager_unittest.cc

Index: gpu/command_buffer/service/shader_manager_unittest.cc
diff --git a/gpu/command_buffer/service/shader_manager_unittest.cc b/gpu/command_buffer/service/shader_manager_unittest.cc
index 4218d504c688bfe925b2cc7d17500f00ba0083ff..f5f620655fb91adcc9510da5e1627cdcc45b7c10 100644
--- a/gpu/command_buffer/service/shader_manager_unittest.cc
+++ b/gpu/command_buffer/service/shader_manager_unittest.cc
@@ -127,16 +127,30 @@ TEST_F(ShaderManagerTest, DoCompile) {
   EXPECT_FALSE(shader1->InUse());
   EXPECT_TRUE(shader1->source().empty());
   EXPECT_TRUE(shader1->log_info().empty());
-  EXPECT_TRUE(shader1->signature_source().empty());
+  EXPECT_TRUE(shader1->last_compiled_source().empty());
   EXPECT_TRUE(shader1->translated_source().empty());
   EXPECT_EQ(0u, shader1->attrib_map().size());
   EXPECT_EQ(0u, shader1->uniform_map().size());
   EXPECT_EQ(0u, shader1->varying_map().size());
+  EXPECT_EQ(Shader::kShaderStateWaiting, shader1->shader_state());
 
   // Check we can set its source.
   shader1->set_source(kClient1Source);
   EXPECT_STREQ(kClient1Source, shader1->source().c_str());
-  EXPECT_TRUE(shader1->signature_source().empty());
+  EXPECT_TRUE(shader1->last_compiled_source().empty());
+
+  // Check that DoCompile() will not work if RequestCompile() was not called.
+  MockShaderTranslator translator;
+  shader1->DoCompile(&translator, Shader::kANGLE);
+  EXPECT_EQ(Shader::kShaderStateWaiting, shader1->shader_state());
+  EXPECT_FALSE(shader1->valid());
+
+  // Check RequestCompile() will update the state and last compiled source, but
+  // still keep the actual compile state invalid.
+  shader1->RequestCompile();
+  EXPECT_EQ(Shader::kShaderStateCompileRequested, shader1->shader_state());
+  EXPECT_STREQ(kClient1Source, shader1->last_compiled_source().c_str());
+  EXPECT_FALSE(shader1->valid());
 
   // Check DoCompile() will set compilation states, log, translated source,
   // shader variables, and name mapping.
@@ -168,7 +182,7 @@ TEST_F(ShaderManagerTest, DoCompile) {
   EXPECT_TRUE(shader1->valid());
   // When compilation succeeds, no log is recorded.
   EXPECT_STREQ("", shader1->log_info().c_str());
-  EXPECT_STREQ(kClient1Source, shader1->signature_source().c_str());
+  EXPECT_STREQ(kClient1Source, shader1->last_compiled_source().c_str());
   EXPECT_STREQ(kTranslatedSource.c_str(), shader1->translated_source().c_str());
 
   // Check varying infos got copied.