gpu: Add CHROMIUM_texture_from_image spec and fence support.

cc/resources/resource_provider_unittest.cc

Index: cc/resources/resource_provider_unittest.cc
diff --git a/cc/resources/resource_provider_unittest.cc b/cc/resources/resource_provider_unittest.cc
index 52335c665404551e8b6c6cf206a7dfd79d87ad5f..6e5d4aaa5f2cfc303e694e9f57438c12cb4579d5 100644
--- a/cc/resources/resource_provider_unittest.cc
+++ b/cc/resources/resource_provider_unittest.cc
@@ -3291,7 +3291,7 @@ class AllocationTrackingContext3D : public TestWebGraphicsContext3D {
   MOCK_METHOD4(createImageCHROMIUM,
                GLuint(ClientBuffer, GLsizei, GLsizei, GLenum));
   MOCK_METHOD1(destroyImageCHROMIUM, void(GLuint));
-  MOCK_METHOD2(bindTexImage2DCHROMIUM, void(GLenum, GLint));
+  MOCK_METHOD3(bindTexImage2DCHROMIUM, void(GLenum, GLint, GLint));
   MOCK_METHOD2(releaseTexImage2DCHROMIUM, void(GLenum, GLint));
 
   // We're mocking bindTexture, so we override
@@ -3513,7 +3513,7 @@ TEST_P(ResourceProviderTest, Image_GLTexture) {
   EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, kTextureId))
       .Times(1)
       .RetiresOnSaturation();
-  EXPECT_CALL(*context, bindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId))
+  EXPECT_CALL(*context, bindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId, 0))
       .Times(1)
       .RetiresOnSaturation();
   {
@@ -3533,7 +3533,7 @@ TEST_P(ResourceProviderTest, Image_GLTexture) {
   EXPECT_CALL(*context, releaseTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId))
       .Times(1)
       .RetiresOnSaturation();
-  EXPECT_CALL(*context, bindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId))
+  EXPECT_CALL(*context, bindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId, 0))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*context, RetireTextureId(kTextureId))