cc: Use highp precision for texture coords if available and needed

cc/output/gl_renderer_unittest.cc

Index: cc/output/gl_renderer_unittest.cc
diff --git a/cc/output/gl_renderer_unittest.cc b/cc/output/gl_renderer_unittest.cc
index bb36a086a5d084ec21f16f9efeb86e99dff1abba..b8aaa8282a82c7e06e05b5b23d37fc1122e87f46 100644
--- a/cc/output/gl_renderer_unittest.cc
+++ b/cc/output/gl_renderer_unittest.cc
@@ -51,19 +51,29 @@ class GLRendererShaderTest : public PixelTest {
     EXPECT_PROGRAM_VALID(renderer_->GetTileProgramSwizzleOpaque());
     EXPECT_PROGRAM_VALID(renderer_->GetTileProgramSwizzleAA());
     EXPECT_PROGRAM_VALID(renderer_->GetTileCheckerboardProgram());
-    EXPECT_PROGRAM_VALID(renderer_->GetRenderPassProgram());
-    EXPECT_PROGRAM_VALID(renderer_->GetRenderPassProgramAA());
-    EXPECT_PROGRAM_VALID(renderer_->GetRenderPassMaskProgram());
-    EXPECT_PROGRAM_VALID(renderer_->GetRenderPassMaskProgramAA());
-    EXPECT_PROGRAM_VALID(renderer_->GetTextureProgram());
-    EXPECT_PROGRAM_VALID(renderer_->GetTextureProgramFlip());
-    EXPECT_PROGRAM_VALID(renderer_->GetTextureIOSurfaceProgram());
-    EXPECT_PROGRAM_VALID(renderer_->GetVideoYUVProgram());
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetRenderPassProgram(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetRenderPassProgramAA(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetRenderPassMaskProgram(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetRenderPassMaskProgramAA(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetTextureProgram(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetTextureProgramFlip(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetTextureIOSurfaceProgram(TexCoordPrecisionMedium));
+    EXPECT_PROGRAM_VALID(
+        renderer_->GetVideoYUVProgram(TexCoordPrecisionMedium));
     // This is unlikely to be ever true in tests due to usage of osmesa.
     if (renderer_->Capabilities().using_egl_image)
-      EXPECT_PROGRAM_VALID(renderer_->GetVideoStreamTextureProgram());
+      EXPECT_PROGRAM_VALID(
+          renderer_->GetVideoStreamTextureProgram(TexCoordPrecisionMedium));
     else
-      EXPECT_FALSE(renderer_->GetVideoStreamTextureProgram());
+      EXPECT_FALSE(
+          renderer_->GetVideoStreamTextureProgram(TexCoordPrecisionMedium));
     EXPECT_PROGRAM_VALID(renderer_->GetDebugBorderProgram());
     EXPECT_PROGRAM_VALID(renderer_->GetSolidColorProgram());
     EXPECT_PROGRAM_VALID(renderer_->GetSolidColorProgramAA());