WebGL TexParameterf and GetTexParameterf needs to handle float param correctly

gpu/command_buffer/service/error_state.cc

Index: gpu/command_buffer/service/error_state.cc
diff --git a/gpu/command_buffer/service/error_state.cc b/gpu/command_buffer/service/error_state.cc
index 524ea4f79ec770374f0e3feeb2af1e95e41221f8..3468c7e7c615d4b9d6cfda1e05611155eeafd392 100644
--- a/gpu/command_buffer/service/error_state.cc
+++ b/gpu/command_buffer/service/error_state.cc
@@ -33,13 +33,20 @@ class ErrorStateImpl : public ErrorState {
       const char* function_name,
       unsigned int value,
       const char* label) OVERRIDE;
-  virtual void SetGLErrorInvalidParam(
+  virtual void SetGLErrorInvalidParami(
       const char* filename,
       int line,
       unsigned int error,
       const char* function_name,
       unsigned int pname,
       int param) OVERRIDE;
+  virtual void SetGLErrorInvalidParamf(
+      const char* filename,
+      int line,
+      unsigned int error,
+      const char* function_name,
+      unsigned int pname,
+      float param) OVERRIDE;
 
   virtual unsigned int PeekGLError(
       const char* filename, int line, const char* function_name) OVERRIDE;
@@ -131,7 +138,7 @@ void ErrorStateImpl::SetGLErrorInvalidEnum(
              GLES2Util::GetStringEnum(value)).c_str());
 }
 
-void ErrorStateImpl::SetGLErrorInvalidParam(
+void ErrorStateImpl::SetGLErrorInvalidParami(
     const char* filename,
     int line,
     unsigned int error,
@@ -152,6 +159,19 @@ void ErrorStateImpl::SetGLErrorInvalidParam(
   }
 }
 
+void ErrorStateImpl::SetGLErrorInvalidParamf(
+    const char* filename,
+    int line,
+    unsigned int error,
+    const char* function_name,
+    unsigned int pname, float param) {
+  SetGLError(
+      filename, line, error, function_name,
+      (std::string("trying to set ") +
+       GLES2Util::GetStringEnum(pname) + " to " +
+       base::StringPrintf("%G", param)).c_str());
+}
+
 void ErrorStateImpl::CopyRealGLErrorsToWrapper(
     const char* filename, int line, const char* function_name) {
   GLenum error;